Both my friend and I have had great sucess with N.A.Ps Thunderheads, both the 100, and the 125 grain types, thay have accounted for between the two of us, over twenty deer, including two P&Ys and one B&C.
Thay fly near perfectly out of my friends bow, but not quite as well out of mine. I felt the problem may have been that my friends bow is shooting (Im guessing) btwn 230-238fps, where as mine is shooting at a chrnographed confermed 263fps for a ten shot average.
I also have always been less than enthused about both the way T-Heads blades assemble in the furrule, and the "O-Ring" system they use to square up the blades to the washer.
I gave Wasps a through going over and realy liked not only there over all design as thay assemble and, but both their durrabillity, and their supper razor sharp blades, and needle sharp chisel point.
For what ever the reasion, the 100 grain Wasps fly near perfect for me. I will also state Im shooting at 67lbs and my arrow weighs in at slightly over 6 grains per lb of draw weight, and thay are well matched for stiffness. I shoot Golden Tip carbon arrows.
When I began to look for a possible replacement for my T-Heads, I tried and returned the fallowing Broadheads:
<>100 grain Muzzys, thay flew hands down the worst out of all the BHs I tried, and althogh thay were sharp and well made, thay were without a doubt the dullest BH out of all the ones I tried. Of the six I bought, none would easly shave hair off my wrist like all the rest would.
<>100 grain Sullivans Innerloks,
These are vary sharp excellent, well made BHs, thay simply did not fly well out of MY bow.
<>100 grain Rockets Ultimate Steel. These are quite durrable well made, super sharp BHs that flew litterally to the same POI as my field points. Their only short comming is the ferrule is so short that only two or at best three of the male threads screwed into the female threads of my arrows insert, so I chose not to use them.
The wasps also flew so well out of my bow that I could hunt with them without having to adjust my sight at all, and that is out to 45 yards. I also liked the way the blades were so sharp that the hair litterally flew off my wrist when I tried to shave it off. I also preformed a few penitration/durrabillity tests using some of my old XX78s and my new 100 grain wasps. I shot one arrow at a distence of 20 yards into a steel garbage can that had a piece of capeting on the outside as well. The arrow and broadhead penitrated through the carpet and both sides of the garbage can, but remained in the can. A full 7" of arrow stuck out the other side, and the Wasp BH held together perfectly, with no blade loss or failure of any kind, but the tip and blades were understandubly less sharp. I performed the same test but moved back to 35 yards. The results were much the same except this time the BH only penitrated 95% of the way through the second side of the can, but held up just as well as the first Wasp BH.
My bow is what I consider well tuned but probubly not perfect. My form is good and my draw length is also set as close to perfect as I could get. This bow paper tests both FPs & BHs quite well.
I now shoot 100 grain Wasps, and thay are hands down IMHO, the best all around performing BH I have ever shot, I would strongly recammend them to anyone.
Hope this was helpfull to some one.