Hi Gentlemen- Well, I bought mine on the pre-order deal, and it arrived in mid Aug as scheduled. I haven't done anything with mine yet, as 2 other members also bought one, and 1 was going with electric power, and the other member was going with glow power. I thought I'd wait and see how their planes faired before i decided on power. I definitely am more in favor of glow power, vs electric, as i like to fly for 15-20 min at a time. 1 member Greg was the 1st to complete his, using an Eflite power 32 motor, 75A ESC, and I think a 4S, 4000 pack. This combo performed very nicely, and was plenty of power to do everything he wanted. We are also flying off grass field, but our parks maintenance people keep it cropped very short for us. Th plane tracked straight and true down the runway with little rudder input, and Greg didn't horse it off the ground, rather let it fly itself off. He only used about 3/4 throttle, and the climbout was impressive to say the least. He did a bunch of maneuvers after a minor trim adjustment, and it is rock stable at cruise speed. I think he flew for 13 min on that battery pack, and came in for a picture perfect landing. No issues with wheel pants, or handling in the grass.
Our 2nd membe just finished his, and came to the field this past weekend. He put an OS 61FX 2 stroke in his, and did the inverted installation as suggested in the Sig instruction manual. With some doubts about issues with inverted 2 strokes, and fuel fouling of the plug, he opted for an on board glow ignitor. He had our club test pilot check it all out, and proceeded for maiden flight. He powered up to about 1/2 throttle, and the plane tracked down the runway smoothly and lifted off nicely, and with a minor trim adjustment, flew perfectlt level. Adding full power, the plane rocketed upward, and was almost ought of sight when he powered back. It performed every maneuver flawlessly, and was fun to watch. The landing was also smooth, coming in with only a touch of power. I think that anything more than a .70-.80 4 stroke is just overkill, and going to a 15-20CC gasser is just way too much. I think that the torque of a 4 stroke is what makes these planes squirrely on the ground, and why so much more rudder is needed to keep them straight. After watching both setups, I decided I'm going to stay with glow for mine, and at 7lbs, I decided that I'm going to power mine with an OS 46AX that I have. The one with the OS 61FX cruised nicely with only 1/4 throttle, so I'm not going to overpower mine, as I fly more scale, and I think it will do everything I want with the .46. If it needs more power, I have plenty of motors that I can step up to. I'll post a few pics of my assembly and motor setup when I get it unboxed. Thanks for the thread, and ur inputs, and any suggestions u may have. Dean