Anyone use them? I know rage is really popular, but the wasp did extremely well in a comparison I read lately and they are far cheaper than rage and a lot of other mechanicals.

My brother in law uses them exclusively! He loves em...

i've had all good results with them. i have taken the last 7 or 8 deer with them with all but 1 had pass through shots. i went out and bought a pack of 2 blade rage last winter just for the heck of it and i'm still waiting to try them out.
but i am very pleased with the jak hammers. the longest a deer traveled after a shot with the jak hammers was 40 yards.

first year I have used the jak-hammers and I am sold, won't need another broadhead for a long time