Hi Dennis, 2 lbs is fine. 2 lbs and a few ounces is still fine. 3 lbs is too much

I think the electric I did was 28 ounces painted at that stage. The glow ones were about 2 lbs even, and with an OS 140 they were 9 1/2 lbs flying. After the DZ and a ton of lead in the tail it came out 10 lbs 5 ounces. My advice is just keep sanding. Don't go through the glass, but go at least TO the glass. Use a foam sanding block to help keep it level, and just sand sand sand. You'll be fine, just don't get crazy with the paint. As in, as soon as it levels and you can't see through it, it's DONE. If you get some texturing and overspray, that's on, wait until it cures and wet sand and polish it out...do NOT add more paint.

Good luck!
-Mike