I have a Diesel 65 and really like it. It's not be the best choice for serious class 5, but it's great for runs like Bailey, Gore, Narrows, Joe Wright, Spencer Heights, etc. It seems to be as fast as an RPM, but much more stable and without the edges. Rolls easily. Like any boat, it took me a few trips to get used to it. It surfs reasonably well (hey, it's not a play boat!) and is really comfortable. The Diesel is noticably lighter than the H3 and you can probably use the same skirt as your other boats (the H3 requires a larger skirt than the EZG). I went through pretty much the same process in looking for a boat last year - you might want to check out the relative weights of the boats, skirt size, and how comfortable you are in the boat. I'm 150 and the 65 is just right for my weight.