Hello, new to the forum, thanks in advance for all tips! This is my first winter for the Ultra. It is being winterized on its lift over the lake here in the Midwest where we can easily get in single digits. I have done my research on all fogging techniques so I am not really concerned on that side, more focusing on if I have successfully removed all traces of water? I have lowered the lift and did a gravity drain, started it up and blew what would exit that way and then added 3 gallon of antifreeze while in a level horizontal position. Never saw antifreeze exit the p hole and eventually it exited from underneath the ski. Have I accomplished the water part or did I miss something? Thanks for any support.