I would guess our boats weight similar weights without ballast and both ski very well which makes generating the wave you see above a challenge and one you have to make a few sacrifices to get. As you can see, I am running ballast on the floor of the boat. If I were to try and keep it all out of sight we would have to sell the boat and buy a V-drive to surf. I love to slalom ski and also enjoy foil surfing a lot so I want a boat that can "do it all" and know the v-drive wakes will really disappoint when I put the slalom ski on. For you info, I'm running a 750 on the surf side of the engine, a 500 on the goofy side, and a 300 in the locker. It sounds like I'm not really running too much more weight than you are but we normally run a crew of at least 4 which helps a lot. You figure that's at least another 600lbs. The bummer is you can't cheat physics and like the hot rod guys say, "there's no replacement for displacement" and displacement happens with more weight. I think a true gate will give you a bit better results than you are seeing with you mission delta. My buddy has one on his Nautique V-drive and it works as advertised but I feel a bit bigger gate positioned at the transom would do a bit better. We all enjoy a ride behind a bigger boat with a bigger wave but at the end of the day, if you want to keep the boat your in the best thing to do is to make it what you want. After chatting with you, I think foiling would be a blast with an automated gate system on your boat and maybe a few more people in the boat or another way to add a few more hundred pounds.