Also, the Kotor Save Editor does work as well with TSL, just do not edit your Feats, Powers, or Items until they update it.
Thanks for testing it. I figured much of it would be the same Field-wise. If spells.2da and feats.2da are placed in the override folder, I should think that you'll be safe to use those as well. However, I'm sure the classes are different enough that I wouldn't recommend adding or changing your class at this time. I won't be receiving TSL for at least a week and it will be probably a week or so after that when KSE gets revamped to support TSL specifically. (Xbox TSL support will also be included at that time.)