IT WORKS!!!
I doubled the elevator throw and added 1 oz (1/4 at a time) to the tail. Now I can make those smooth 3-point landings.
The plane stalls harder and quicker with the extra tail weight, but nothing to worry about. I have stalled the airplane a few times during turns, but I don't think this will be a problem when I get used to it. I just have to be more careful with the elevator at low speed.
(Today I went to the field early, and found out at 1:30pm that I hadn't eaten breakfast yet...)
-Tore.