We didnt measure at the fuse sides, I can next time I put it together, ROBOTO65 had to head back south and left the bird at my place [>:] till he can pick it up later. SO I will get another opportunity to play with it before its gone hehehe.

WE used Tom's method of marking the wing tips with a string, and we were behind the aft mark approximately 1/2-5/8". To move the CG forward we installed a CF tube on the horizontals saving a wopping .6 oz's LoL, then extended the engine standoff another 1/4" (they are now 1 1/2" long), as well as added a 3 1/2" aluminum spinner. RX, regulator, battery, etc were as close to the wing tube as possible, with ignition components as far forward on the engine box as possible to include throttle servo in the engine box.

Current CG is about 80% of the tube to the aft and it feels nice! We had strong winds today so it threw alot of testing off. I could put in the wind pull to and idle (as if you were going to harrier) and with low rates (as manual suggests, 12° if memory serves me) the elevators were able to hold a harrier LoL. But most of that was the wind.

This Sukhoi came out at 16 lbs 15 oz's before we "revised" it with the spinner and such. Reason we attempted the maiden with the rearward CG is that I own the prototype to this bird from Tom, and I have its CG slightly aft of the wing tube and its slightly aft of neutral. I guess that extra 3/8" or so made all the difference hehehehe. Tom's birds are all so stable that you can really push the limits on the CG, I guess we found that limit! LoL.