Boat lift help

[jason1973]

Need a little help, below is a pic of my current boat lift. Its a Floe.

If you look at the center bunks, i have them sitting about 10" above the frame. With my new Mondo, i have tracking fins (didn't have them on my previous X2).

Can anyone tell me where i should set the height of the bunks so the frame doesn't contact the tracking fins? I am not sure how far the mondo sits in the water.. website says 25" draft. But i don't know where the tracking fins will end up (depth)

I usually have the bunks under the water when i pull in.. just under the water by about 1" or so.