Over the last dozen years I've tested several dozen different models of broadheads. When the chips are down and I need my most reliable broadhead, my "go-to" choice is the Wasp SST Hammer. Of all the different heads I've used, I've gotten the most consistent and heaviest bloodtrails with the Wasp. Of all the different heads I've used, it has the sharpest blades right out of the box. Assembly is easy, changing blades is easy, and the Wasp flies like few other heads I've ever tried. I give the Wasp a perfect score of 10. There is nothing I can think of to say negatively about the Wasp SST Hammer.
I took this Nilgai bull in Mexico in 2002 with the Wasp SST Hammer 125
Why they give better bloodtrails than other 3-blade heads I've used (including the popular Thunderhead & Muzzy), I don't know. It may have something to do with the edges of the Trocar tip being sharpened in addition to the blades being scalpel sharp. The blades are SHARP. I've taken many animals from 40 lbs.(javelina) to 600 lbs.(Nilgai Antelope) with the Wasp, including Whitetail & Mule deer, Pronghorn and a passel of wild hogs, and it has permformed equally well on all. I've achieved complete pass-through's on all but the Nilgai, and on that I still got about 3 feet of quartering-away penetration before it was stopped by the massive leg bone. On several deer and hogs that I took with quartering away shots, the head shattered the leg bones and passed through with no problem. The tip has never been damaged and the blades have only ever been slightly damaged, but you replace them anyway.
I took this Montana Pronghorn buck in 2001 with the Wasp SST Hammer 125
To test the durability of the Wasp SST Hammer 125 on something similiar to the shoulder blade of a deer, I shot it through a sheet of 1/4" plywood at a distance of 30 feet. It passed completely through with blades intact and no damage to any part of the head.
It is a pure joy to hunt with something that so consistently puts a lot of blood on the ground, as the Wasp does. On my Nilgai, there was only one hole since the arrow didn't exit, but I was able to follow the blood trail for 900 yards to my bull. On the Mule deer buck I made a heart shot and I could see blood pouring out of the entrance hole as he ran. When I went to get him the bushes beside the trail where he had run appeared to have been sprayed with a paint gun of blood. Blood was literally dripping from the bushes. It was unreal. My Pronghorn was the same way. I watched him fall so I didn't need to follow a blood trail, but it was voluminous if I had needed it.
I took this Alberta Mule deer buck in 2000 with the Wasp SST Hammer 125
I've never had any problems getting the Wasp to fly well on any bow/arrow set-up I have used. It's not finicky at all. So far it is overall the best broadhead I have ever used and I highly recommend it.
Pre-sharpened tip, tough, scary sharp blades, great flight