Yeah, Don, I keep saying this, but that OS 1.20 AX really runs sweet. I had an EVO 100 on that plane that really gave me a tough time so I bit the bullet and bought the OS. Good choice on my part. Same weight as the EVO even with that big muffler. One problem I ran into, though, perhaps my fault. The bolt that holds both halves of the muffler broke while I was in the air a couple weeks ago. I probably overtightened it when I rotated back half with the exhaust port. I notified OS the next morning and a week later I got a brand new muffler in the mail. A whole muffer, not just the part that was broken. Good service!
So, that's my reason for going with that engine on the Venus II.

DS.