I honestly don't think there is any mod which could be done to this airplane that would hurt it.

After watching all 3 of jnjackson's Magics and reading all the posts of other people's mods, there just is no limit to what can be done.

The only mod I would add on top of all of the ones already mentioned is to put a 1100 Nimh 6 volt battery as far back in the fuslage as possible. Increases the flight time and helps move the CG back.

Mine has flying wires on the tail feathers, OS 46 FX w/12.25 x 3.75 and an 8 oz Sullivan. I am currently waiting on a Tower muffler to arrive for the motor.

Move the CG back and Fly it like you stole it.