I have a UCD 46 with an OS 50SX-H (heli engine) and an OMP Edge 47" (profile) with an OS46 FX. Both are good 3D planes and both have 2 strokes. If I had to do it over I would use 4 strokes on both because when you hover you are really doing something extreme here and you really need the Torque. Do not cheap out on your engine! For sport flying a 2 stroke is fine. Now, after practising all last summer I can hover both of these birds with what I have, though I am still learning and still too chicken to bring them in low, though a more skilled pilot can hover them with ease. I have seen this. One of the keys here is the skilled pilot thing. I find 3D extremely challenging and sometimes it scares the **** out of me.

So which plane is better? Both are floaters though the Edge is a little better. The Edge is a little easier to hover - for me anyway. The UCD has strong coupling with the rudder - this really apparent when you knife edge. I have not tried to mix this out BTW. The UCD is way better in a cross wind and overall flies cleaner than the EDGE. If I had to choose one it would be the UCD. But of course - I really had fun with my Edge tonite - it can do some weird things when you get it going.