Rock solid with the strap. The tapered-U shape kept the face board 1/2" from the hull - dumb luck. I have some pipe insulation like you and planned to make a bigger notch to accommodate both sides, but my tools are long walk from the boat so I decided to test as is. no spray, but I did get a LOT of water over the top messing up the lip still - Im going to try 1" taller face tomorrow (and 1" deeper since mine is symmetrical). That will put me at 22" long and 14" tall.
Will be interested to see if that messes with the steering. As it is (22"x12"), I noticed a sight resistant to turn right at idle speeds. Maybe the turning radius is 5' larger. It also backs up straight rather than the usual driver side pull. None of my guest drivers noticed a pulling or impairment. They both commented on the improvement of not being tipped and the bow being way easier to get over the rollers. The drivers bow corner used to ride 6" off the water when slammed for surfing. now its at least 24" - I had 0 weight in the bow for my tests.
BTW -Im at $0 for this monster improvement. I had all the pressure treated lumber scraps sitting around. Kicking myself for not doing it last year -- Thanks Joey!! You just saved me $1000 on a 2012 swim deck or MORE $$,$$$ on a 2014 axis!
Not sure if this google+ video link works like this for public sharing:
("Gear" button in the lower right to increase the resolution - 720 looks better)