Also, if we were to go for skill limitations, 300 is a terrifically low number; I have 477 at lv76. And no/preset skills is silly.
According to my calculations, all skills that're valuable at lv99 (ie, no experience or exclusive skills) together cost 626 points; using 'drawback versions', 575 points. If you assume hit-free runs, you can lop off skills worth 51 (41 drawback) points, but ring chain runs also require an experience skill costing 30 points. All in all, it may end up being a nonissue, especially if further skills are deemed useless. If people are hitting lv99 circa 500 points they might be feeling the pinch, but I'm not sure how probable that is.
I'm inclined to just throw out RA and call it a day, at least until we get some kind of consensus on it.