I guess I'll throw in my 2 pennies...The hog hunt I went on a week and a half ago really opened my eyes on the effectiveness of mechs. My group was a mix of trad and compound shooters. 2 blade COC, three bladed replaceable, and mechs were all used. Who had the best and shortest bloodtrails? The Spitfire users, by far. Me and another Silver Flame user made good shots w/ passthrus, but our hogs left very little blood on the ground and they kept truckin' for a little while. The trad shooters had similar experiences. I believe they were shooting Zwickeys and Phatheads. The biggest hog, about 350 lbs, was shot with a spitfire from a 60lb compound and and the woods was painted red.
I may nothave enough punch for a Spitfire, but I will at least be packing a multiblade head for now on. The Flames will be reserved for the really big stuff like elk.