Hi qldsalty
You say you don't like wave fins feel for blasting with Kombat, so I'd say you can't go wrong with Select FSW 25 or 27 (if you're well powered, then go for 25). I often use 23 & 27 with my K86 (provided that wind is strong enough that I don't need stock Drake 30), excellent bump/jump fins.
Btw, powered 5.4 on a K86 - "light conditions"? I envy you