RE: broadheads for elk
Sorry but I agree with those who say leave the mechs at home when you take after Elk this fall. Penetration is key to larger game with larger body cavities, thicker hide, muscle and bone. I would suggest a good quality fixed but more preferably a cut on impact style head (like Magnus, etc). I will tell you I have been tinker with my Elk BH medicine for this fall and even though in the past the 3 blade Muzzy & TH have done the job, I am not 100% satisfied with the penetration. I am shooting a Martin Cougar Mag at 70lbs with 28" carbons, while my bow maybe a bit faster, they should be pretty close. I picked up some of the 100gr magnus stingers 4-blades (2 bleeder blades added to standard 2 = 4 total) to try, my own tests prove that the magnus cut on impact style penetrate much further than my 100 gr 3 blade muzzy' s. They also group right with my field points, fly great and are way sharper than the muzzy out of the package. I think they should perform great on all game, but will give me more punch on the Elk & Moose sized critters, which is what I want.
Another fixed BH 3 blade with a cut on impact style to take a look at Montec G5' s They appear to be another great head and 5 shot has some test data to prove that fact, as do others in the bow forum. The only knock I have heard is the original ones did need some additional sharpening before heading to the field, apparently this issue has been or is suppose to be solved with the newest version of the head. However I really don' t see that to be a big draw back, as I always sharpen my heads before placing in the quiver for the season. (Main reason is I shoot each arrow and bh to ensure they are grouping and good flight) Montec sell a diamond sharpener design to hone their heads as well.
Good Luck on you hunt for elk and the right BH!