X-35 stock ballast and 3 men in the boat. I was test driving it.
6'9" tall rider with mediocre skills at best. http://i243.photobucket.com/albums/ff206/talltigeguy/X-35%20demo/IMG_6492-1.jpg
I like the wakeboard wake on the 35 better, but the sink was hard to get over and my budget forced me into the used market and now I have a 45.
With stock ballast and 400 pounds in the rear corner, this is my 5'9" wife surfing my X-45: http://i243.photobucket.com/albums/ff206/talltigeguy/Lake%20Powell%206-09/IMG00024.jpg
I don't think 400 pounds over stock to get a wave that strong is really much at all.
We did not surf the 35.
If I had 85K to blow on a boat, I would get the 35 without the sink and with just wrap around seating.