ive flown the ultimate with a DA 50 for 40 hours and this year i got a new Evolution 58 for it and its a lot more motor the 24" props are swung with authority and that adds a lot of blast area for your 3-d pleasure. The extra pound is not an issue in the least. I often wonder why people keep saying lighter wing loading is the secret to 3-D when the wings are pointed up and the plane is hanging on the prop what load is the wing taking? the ultimate will sink a tad faster if you cut the throttle so getting back into them smooth as silk landings my take me a few days at the field but so far so good. Ide like to fly this plane with a DA again I may try a swap someday with my edge just for yucks but both engines have there place and power is a sweet thing if you ask me. when this new 58 gx 2 is broken in and tuned in im sure ill be a happier camper than i allready am.