[sm=wink_smile.gif]dgrant... My Skybolt is my first bipe and I LOVE IT !!! I just built it this year and I have a Saito 1.00 with a Sullivan onboard glow (dedicated 4.8V battery), a 4.8V receiver battery, XOAR 15x6 prop and it flys like a dream. Awesome on 25% nitro but still plenty of power (unlimited vert) on 15%. I'm constantly being asked what engine I have because people can't believe the power. AUW 7lb. 8oz. (I think that's what it was ???) Now I'm hooked on bipes !

Some friendly advice / suggestions for you... (some are just reminders about what others have said in this thread and which are very true)...

1/ Highly recommend the Saito 100 on this plane but DO reinforce the firewall before mounting-up your engine;
2/ Reinforce the servo tray for sure ! I C/A'd narrow (1/2") pieces of ply along the front of the tray and the back of the tray from one side of the fuse to the other effectively making the tray like an 'I-beam'. Very easy and rigid;
3/ Don't just glue in the receiver / battery mount in place... Secure it with two small screws on each side too. Remember, when you're building the plane and the fuse is upside down on your work bench it looks fine but when you're flying and perhaps have a hard landing, all the weight of your receiver and battery pack(s) are now hanging from the mount and could yank it off;
4/ I understand the aileron differential thing but honestly, you'll never notice it;
5/ Don't put much heat to the covering on the bottoms of the wings. It's junk and even Great Planes doesn't know where it came from because apparently, the factory sourced it from god only knows where. So much for "expertly covered in Genuine Monocote" ??? Personally, I wasn't happy with the covering job at all but then again, my last ARF was an Aeroworks and it doesn't get much better than those;
6/ Don't be afraid to put the CG way back. Still easy to fly;
7/ Remember, your ailerons are out toward the edges of the wings where the prop blast doesn't hit them so no air speed (or very low air speed) = no roll control !;
8/ A friend of mine had the lower wing alignment dowel (the little knob in the center of the lower wing that hooks into the fuse) break on his SB so with mine, I mounted two more 1/4" ply blocks in the fuse with blind nuts in them just under the leading edge of the wing so I can secure the lower wing on with four nylon bolts instead of just two. Two at the back (factory) and two at the front (mine). Just a little extra insurance;
9/ Don't epoxy the knurled nuts to the threaded rods which hold the interplane struts to the wings. Instead, drill and tap a hole (6-32) in the side of each knurled nut and secure each to the rods with set-screws. If you every have to get them apart for some reason (post crash rebuild), you can.

The plane is a blast to fly. You'll love it. As for me... GP Ulitimate (50cc gasser) is on my build list for this winter.

Have fun[sm=wink_smile.gif]