I have a Zen 90 with a ys140 on it and is the best flying plane...very straight and true and vertical is like it was shot out of a cannon...ground clearence is a problem and it has a visibility problem if you let it get to far away. This is one hard airplane to see so be forwarned. I would have put a 90 in it but the 140 is all I had and I just had to have a pattern plane9you know the feeling)...I don't get to fly it much but man o man does it fly straight and I do like the prejoined wing.
I will post some pics on my web site if you wanna see.

http://meteor.lynwayne.com/interest.htm