I think you're making it difficult for yourself trying to make a Cub a trainer.

You posted here for advice, then ignored the advice. I certainly gain nothing giving you advice yet you rather tough it out. I have a five year old who doesn't listen either.

I would strongly urge you to put the Cub on a shelf and get your LT-40 or similar trainer and put some flights on those, many flights until you get your take off and landings down. Then you can graduate to a tail dragger and a great second plane is a SIG Four Star, far more predictable than a Cub and that would be your second plane.
So, you want a Cub for a trainer, the crash will open your eyes. I've seen those pilots too, they go in over-confident and fail at great expense to their invested building time and cost of the kit. Just take everything now and throw it hard on the driveway, you're chances are better now to save something.

Trainers are called that for a reason and they have a valuable place in the hobby to break in a pilot. If you want a tail dragger for a trainer, well, you could find a Telemaster with very good flying characteristics and be just one step behind the Cub. You need some dihedral with a flat bottom wing, longer than normal wingspan, and small control surfaces. The better the CG, the better the flight.

Hey it's just my opinion, everyone has one. Tower has a trainer ARF for $49 on the scratch and dent section, there is a cheap way to have a knock around plane. If the LT 40 makes you nervous, the Cub will give you a stroke. Try reading Flying Basics here:

http://www.easyrc.com/airplanes/index.html#fly

Then read:

http://www.easyrc.com/airplanes/airplanes4.html

They specifically state once you master a trainer, this would be a next step, and even that is an opinion.

Here is yet another source that specifically addresses the Cub trainer philosophy:

http://www.modelaircraft.org/mag/FTG...19/19main.html