Welcome thirsty003... Great job on your UCD... And congrads on your Maiden!!
The CG range is pretty wide... Mine is at about 6" And tho a little touchy, She
still flys great.. If I remember correctly I think I added and oz to my left wing
also... I bought a used one and I had to redo the wing tips so I epoxied the
weight to the tip... No problems to date.. It has not moved even with my
flat spin landing, and a few deadstick harder landings.. Well enjoy your UCD
and keep us updated:-)