I'll re-post my original answer to this from another thread:


"1) Twin cams are faster than solos if of the same configuration. Therefore, manufacturers have made most conventional solos with a much harsher draw cycle which stores more energy in an effort to compete with the speed of the twins. This harsher draw cycle is much harder on the archers' shoulder and back muscles, especially when they "overbow" themselves with the "false sense of ease" of the 80% let-off at the end of the draw cycle. They also cannot be tuned to as fine a degree as twins simply because they have no opposing cam to "balance-out the system". Ever get those occasional "flyers" with a conventional solo? Most everyone that shoots a solo has had them at one time or another. You simply cannot tune them out with a solo, they come from creeping slightly forward (most archers will from time to time) which rotates the single cam, and throws your shot. With twins you can "supertune"(what I call the creep-tune method) both cams and eliminate those high or low shots and have the same impact points regardless of creep or overdraw. In other words IMHO you have to work much harder to shoot a solo with the same consistency, especially when being a beginning or average archer, regardless of what you "think" you feel due to the higher let-off. Try it with an open mind and see for yourselves.

2) Most conventional solos have 80% let-off to help "mask" the harsher draw cycle they exhibit as stated above. This IMO is also detrimental to an average shooters' accuracy, because the higher the let-off, the less tension that runs through the entire system, and this lesser tension allows the archer to draw the string out of it's natural path much easier, therefore causing more left/right shots. Pros are not as apt to be bothered by this or by #1, because they know what they can safely and comfortably pull, and have superb form and shooting skills. Yes, Pros are winning with solos, but they are being paid to and are going where the money is, otherwise few would be there IMO. They also do not have any of the "form flaws" that most archers do, and thus CAN win with them. I have shot solos for quite awhile myself, but can honestly say I have never shot the scores that I do with twins. Many Pros like Dave Cousins say the difference between solos and twins and accuracy is that with the solo they can keep them holding a "sloppy 10, tight 9", but with twins they can keep them in the " tight 10, or X". With something like 16 World Records under Daves' belt, and the input from other top archers backing twins, I think they know what they're talking about. That same distance can be the difference between a solid double lung and a "no-man's land" shot while hunting, or the difference between a 10 and a 12 in 3D. Another interesting fact is that most of the Pros I know that shoot the solos are running 65% modules or cams in them. Ever pull a true 65% solocam? He-he, better you than me, been there and done that, no wonder I feel old!

3) The hard-wall of the solos is now being matched by built-in "wallbangers" (stops) on alot of the twins. They are rock solid also. Moot point here.

4) Conventional Solos need to be kept in time also, contrary to the "myth" that they are virtually maintenence free. Cam rotation and nocking point height are VERY critical with them, and they can go "out" quickly with their longer string due to increased chance of slippage or stretch. This is not as much of a factor today with the better string materials/better building techiniques available, but a shorter string/cable combination is always better than a longer one regardless to take away any factor at all.(some solos admittedly now have dual-track idlers and an adjustable cam also which helps this. In other words they have two cams!) This means the average Joe will be spending more time at the shop and on the range chasing sight marks than a guy with a twin. I have not touched my Max 2000 in over 8 months since I switched over to Pro-Fusion carbon limbs for it, the cams are still perfectly on my timing marks after thousands of shots, and it hits the X every time. None of my previous solos would touch that for that period of time without some diddling.

In fact, IMO the ONLY 2 things solos now currently have over the twins is 1)- that out of the box, they will initially hold better. This is readily rectified with twins during the tuning/setup process, and becomes a moot point if done correctly with proper stabilization and timing/tuning. Most new twins hold superbly anyway. And 2)-- They are quieter for the most part. Out of the box, this is true and I have no arguement. Interestingly enough, a quick and correct application of cat whiskers and limbsavers for hunting applications (who cares how loud your target bow is if it goes into the X?) will put most every quality bow made today (twin or solo) in the same class also, and is much cheaper IMHO than a doctors' bill for strained or torn muscles due to a harsh draw!

Another person said it best---"If they keep on upgrading the solocam, they'll re-invent the twin cam". I believe he may be correct!

I don't believe this should turn into a Ford/Chevy debate over solos/twins, but I felt that I should clarify a few issues and offer my thoughts on why I feel twins will be a better choice overall for most archers. As stated, whatever you feel comfortable with and whatever you'd like to shoot is fine with me, there are many guys shooting solos out there that love them. As long as we're all shooting, that is definately what matters most."

Yes, to answer your basic question, I firmly believe twins to be more forgiving! <img src=icon_smile_wink.gif border=0 align=middle> Good shooting, Pinwheel 12