Used it first time a week and a half ago out with Crash...Loved it man! the big black goin nuts in a pile of rubble, I didnt have to try and reach in there and get finned to grab him, just pinned him againts the concrete with my "bayonet" as you say!
Then the nice size AJ, the tip only made it HALF way thru his fat monster head...even with all 3 bands cocked on the "monster hurniater super macho 3500" speargun....but with the kill spike? BAM! Before I woulda even had time to pull out my knife, and try to grab him and risk him shakin the shaft lose...I just pinned him againts the wheelhouse with the spiek, and jammed the stringer thru his eyes before I even took the shaft or kill spike out!
Worked like a charm!!!
If we dive togetehr sunday....you might get a kick outta it! Crassh said if I can get one made by then, he wants it.