RE: When to use the wave fin?
If I remember correctly the Kombat 96 came with a Drake Natural Wave 25 and a freeride flow 31. I would say that in 5.3 conditions and below, the 25 will give you better performance. However, the wave fin works best with the straps set inboard (single rear strap). These trims together makes the Kombat almost a totally different board than freeride fin + straps out. Still very fun for maneuver oriented freeride. If you find the wave fin to small and flexy and only want to use the board for more blasting oriented freeride I would look into getting a slightly smaller freeride fin (and maybe sell the wave fin to a wave sailor, its in my opinion the best wave fin that exists).