I suggest a pigsticker style knife/spear point or classic clip point etc. From 7,5 - up to 9,25 inches long but very low blade debt (height?) (hope you know what I mean) about 1,25 -1,45 of a inch. Easy to pierce with. Pretty big Integral cross guard (Quillion). Your blades are very thick so the integral guard will be even very comfortable for the index finger. If piercing I sometimes fell with some of your knives that hand would slip on the blade, so a big guard to prevent it.
Handle nice deep place for index finger to rest (almost a subhilt). Otherwise your reciprene/santoprene (mudd) handles would be perfect. I prefer double cut. I would love to see such a knife, you:)?
