RE: Which one would you buy
I've used Thunderheads for years and would never switch. We've tested these broadheads against many others, shooting them through big steel barrels and nothing stood up like the Thunderhead. Last year, I was given some Muzzy broadheads to try, they were 3 blade 100 gr., and I was also given some 4 blade 125Gr. ones. I shot two deer with the 100Gr. 3 blade Muzzy, and BOTH times, there was AT LEAST one blade that was beyond fixing. Thunderheads, 95% of the time, I can shoot a deer, and then I use this ceramic sharpening stone I bought from Cabelas and it brings the Thunderhead sharpness right back to like new, or even better. I've shot 8 deer with the exact same broadhead, just by resharpening it with this stone, and still the same 3 blades, and trust me, these blades STILL are sharp enough to shave hair off of my arm. I'd say that was money well spent and the sharpening stone is only around $20.