dual cams normally, should be timed to rotate in synch. also called synching the cams. solo cams do not need to do this. Solo cams CAN be OPTIMIZED, but this is a performance (read speed) tunning subject, and doesn't affect accuracy much if at all.
The article was one of Ulmer's "Secrets of a shooting machine" articles which one, I cannot say...he had a series of them a while back.
Dual cam bows do NOT have LEVEL nock travel. YES, they are MUCH closer than 1 cam bows, but they do swing down on the shot. Again, this doesn't seem to matter much in the real world.
New advances in bow technology mean NEW 2 cam bows can have less shock than current 1 cam bows....ALL things being equal, the 1 cam is usually less recoil (Shoot my Martin Firecat 2 cam some time...just hold on TIGHT )
My intention was NOT to be the hardcore solocam defender, but there always seems to be the guy out there that claims 1 cam bows are less accurate than 2 cam bows. History has not borne this out.
MY opinion is to shoot what YOU are confident in.
When Mathews started winning lots of shoots, everyone wanted a solo cam, now a couple of REALLY good 2 cams are out there, so now everyone wants a 2 cam bow (everyone being an exageration of course).
Look at the results, 2 cam bows do NOT have an advantage in accuracy. NOR do I beleive 1 cam bows have an advantage.
Bows are still shot by people. You will shoot best with what you like. I shoot my newer solocam MUCH better than I shoot my 2 cam bows. I just have more confidence in the solocam bow being consistant as I don't worry about the cams comming out of synch (which MINE did...not much...you had to REALLY look to see it, but I knew it was there...enough for me)
MY bet on the issue of Hoyt going to all 2 cam bows is that they don't feel like paying someone else for a licence to make solo cams.