On a similar note, I just tested a 5 blade ACME 2245 M39 (14.50X14.50VL5B 1.125 .060) on my Tige RZR and after 2 days with it, I actually kinda like it. After going back and looking at and timing some video, this prop actually got the boat out of the hole about 2 seconds faster than the 1235 for wakeboarding with a decent amount of ballast.
For surfing, the holeshot was great as well and it seemed to hold the speed pretty well. I didn't get a chance to test it back to back against the 1235 with the same set up as I have been tweaking the weight in the boat but the prop wash seemed to be less on the 2245 and the surf wake was nice and clean.
Here's a quick video of the surf wake. Sorry, the lighting is poor as is the camera work (from my 4yr old, playing around with the GoPro) and my riding as I am quite the novice and have only been riding for a couple months (maybe 10-12 sets as we mostly wakeboard and tend to surf at the very end of the day).
I was still able to get a little over 39mph out of the 2245 vs 36mph on the 1235 and 44mph on the stock 1631. The RPM's at surf speeds (10.6-10.8mph) seemed about the same, but maybe a little lower than the 1235. It was about 200rpm's lower for wakeboarding speeds @ 23mph. As a note, it did not hold 23mph very well as the water conditions and drag on the boat changed compared to the 1235. I'm guessing this has to do with the RPM's being lower.