Too many people are prone to change out the landing gear of a trainer if it bounces. It is easier and quicker to do that than it is to learn to land properly. The only thing I did on my trainer, which I still fly by the way, is change the spongey tires to Lite-Flite tires. These things are light weight, relatively soft, and durable. It took very few landings before I could stick it on the double yellow lines on the road at Intergraph. Chad knows where I mean.