Riding impressions:
Well it was just about at the bottom of the lake after the first 5 min. I had the siphon line hooked up wrong so it was pumping water in instead of out and my bilge wasn't working. Water completely filled the engine compartment and the bottom of the hull. Luckily my buddy's pontoon was right there. I was puzzled at first at how water got underneath the tray, but I think I did a bad job sealing the exhaust because I did see water coming out there as I was draining it.
Anyway, got the siphon plugged up and the bilge fixed. Then finallyl got to test her out. I'm very happy with the new motor. The thing RIPS! I was launching off my setup wakes twice as high as last season. The trim is super nice too. It's not too hard to pull and works great. I thought it was kind of a bitch to install though, but in the end happy I went with Xmetal. The ski seemed to ride a lot lighter even though I was taking on some water under the tray. The shortened hull definitely makes a noticeable difference. The ski is much more nimble, and it seemed easier to jump off the small setup wakes. It does make the ski less stable though so you have to work a little harder at balancing.
All in all the build has definitely met my expectations, and it's like having a whole different ski. I probably only burned about 2 gallons of gas yesterday and I'm pretty sore.