What are these for? Chines?

[bigdaddy_houseboater]

I understand that they are also for handling / cornering. They serve to keep the tail from washing out in a turn. Not sure if they work.. or are even necessary on slow boats like ours.

The turn down edges create lift as the water flows towards the back and should assist in going on plane and maintaining hull attitude, the second hull picture is a narrowed tail which is from the slalomn ski boat days , the ideal slalomn wake is low and narrow so a canue hull was the perfect shape so the ski boat companys begain to narrow the tails , next Tige added pockets just in front of the cut in which controls the spray so the skier could see the next buoy.

[IDBoating]

FWIW, my old Seadoo jetboat had those too.

[chpthril]

I understand that they are also for handling / cornering. They serve to keep the tail from washing out in a turn. Not sure if they work.. or are even necessary on slow boats like ours.

Before someone cuts them out or in some way modifies them, let me just say that some of the cleanest and nicest shaped surf wakes ive seen have been from DD's with ski hulls. Point is, its hard to say if the something like the chines do or do not hinder the wake. With the spray pockets, it has been proven that they do hurt the wake-board wake.

[Fiveflat]

The best surfers in the world don't go through the trouble you are going through for a perfect wake.

Props to you for experimenting and modifying hull shapes. But it's not worth it in my opinion. Just sayin'

[duffymahoney]

Yeah I don't know if I have the b*lls to do it. Just a thought. I wish I lived closer to the ocean!