This is definitely a step in the right direction. The FX will kick butt on the LA. As far as weight distribution goes, move whatever you can back, and then add tail weight if needed.

The good thing here is that adding tail weight is better than adding nose weight because the tail is so much farther away from the CG than the nose is, a lot less weight is needed to make corrections.

As to floating on landing, once you have it flying, experiment with different CG locations. Changing the CG will definitely affect how it behaves. Remember that the MFG's recommended CG is just that, a recommendation. Experiment a little and see where YOU like it.