This is not my first plane but the first one where I cared about the details. I suppose because it was an unknown, I got to learn about a lot of stuff I just never paid much attention to. The cub had a 6oz heavy nose, a heavy engine (about 4oz more than normal), 2 Oz of lead on the firewall and still "tail heavy" at the 3 1/4" mark. That is what freaked me out. I gleaned a lot of information from this board but I got time to visit with a friend who has building for many years to help lock it in. I got a good lesson on CG "ranges" and how they were going to effect flight. I was too worried about if it is tail heavy it would snap roll or be uncontrollable just after takeoff. I was quite happy to learn if it is in the range its just going behave a little different but it should fly (we went into more detail of course). The cub balanced on my imaginary line (I used the bottom of the windows) at about 3 3/4" - 4" back from the leading edge. I was also worried about the weight and got another good lesson on wing loading and how even at 9 lbs this cub is very comfortably in the zone.One thing he did notice is the engine was tight back against the firewall and I had a room to move it forward (the cowl could move forward as well). I elected to do that (about 3/4" ) and wouldn't you know it, it cleanly balances at 3 1/4 with the heavy nose. Thanks for the help