I think I've got it tuned up to the point that I really like it.
I had reported over the first couple days that the tension screw to adjust the retention was kind of wonky, (it's either REALLY loose, or it just won't come out! Those are your choices!) but after working with it for a while, and on the suggestion of someone on another forum who was using the Fobus E2, a VERY light application of some Armor All, and it works perfectly. Solid retention with clean presentation.
I've gone to Fobus's site, and found nothing about either the standard or the Roto in paddle or belt for left handed. Now, the Roto of either will adjust cant to allow for cross draw, but it LOOKS like that's the only option.