I have built and flown the Cermark Pitts, and flown the CC Pitts 12. I flew my Cermark for four seasons with a Saito 180 up front. The Pitts 12 had a G26 in it. I think the Monster 12 is better suited for the gasser if you are leaning that way. Having said that, they both fly very well. I did do some beefing up on my Cermark, even for the 180, and a lot has been documented about this plane in the threads already. I had the engine quite one day, just as i had pulled vertical runway center. It fell backwards, so i pulled out inverted, rolled over and just got the wings level as the wheels touched, then started to breath again. Don't think many bipes would have been able to do that. I saw the Monster owner dead stick it off the field one day. He came carring it back with no damage. We couldn't even see it when it hit the ground. One tough bird. I don't think you will be dissapointed in either plane.