ORIGINAL: blw
The mini servos are light and work great for throttles. Also, the Dubro Feather Lite tires save a *lot* of weight. If you have excess axle material sticking out, cut as much as you can off with a cutoff wheel. You would be surprised just how much weight that is when you put the removed pieces in your palm. Foam wheels for small electrics work great for tail wheels instead of the heavy rubber/plastic ones.
I have the feather light tires on my Little Stick and you are right, they are very light even the three inchers I'm using (grass field and BIG prop). I still might put the Hitech Might Mini servos (HS225-MG) on the ailerons and flaps. If I forgo doing the flaps then I wouldn't use the minis but four servos on the wing should spread the load out enough but Imay be wrong.