Going back to the OPs concern - so what if it bounces? I bounce landings as often as I don't. The bounces are small. Haven't damaged an airframe. Don't have prop ground-strikes. I suppose that CG could play a role. But I wouldn't adjust CG to make it LAND better, I'd adjust it to make it FLY better. If you have to go as far as modifying the gear, that seems like overkill. I'd say, keep practicing and try different approaches (mains vs. three-point).