Recently I've just been using all i-glue and base bond. After 1-week my system just peels off, so no need for any chemicals to remove either. This works great for my super thinskin piece with sfs front. My scalp has never been better.

No harm to give a break to the ultrahold and st30 for a few months

If I require a 2-week hold, or plan on going into water, I just use some ST30. But basebond and iglue give a very solid hold, especially if you put some basbond on the skin perimeter + on your head, then marry the two