allyric...

I don't think you really have much choice. You need to laterally balance all airplanes. At least I do. I usually take a stick on weight and just stick it to the wing tip. Then I take a small square piece of matching covering and iron over it. Leaves an obvious lump but it's hard to see unless you are really looking for it. The plane will fly much better if you balance it.

5" on CG is a very good place to start. You'll probably want to go back a 1/2" or so after you get used to the plane.

Good luck. I hope you get that baby in the air soon.

Thanks
Barry