I just can`t cut into my Freak unless it was absolutely necessary and luckily so far its not. Why not just seal up the tray air floats? I removed motor, ebox, rideplate etc tipped ski on its nose and using my backflush lines that plug into the pissers I completely filled the tray with water thru the drain holes till it squirted out the other drain hole then plugged it (be careful) turn hose on for a second I could hear the carbon buckling turn off and look for the leaks. I found water leaking out around exhaust tube and scupper mostly from inside bulkhead. I drained the water and hung the ski from the bow eye from the rafters in my garage so bulkhead was completely flat and used G-flex and sealed around everything 2 coats . Its not completely watertight as a few ounces comes out after riding but it keeps it afloat with the help of pool noodles.