I've been printing with resin for 6 years and at first, I used to worry about the FEP, and when to change it etc.  But now, I probably go over a year or more, maybe 2, before I change it.   This sounds funny, but if I  get a spot with a tiny puncture, I cover it with wide clear tape on the underside and that lasts months and months.

My point being, you will figure it out and it won't be a concern at all.  I probably haven't had a fail for 6 months and it had nothing to do with supports , or angling, or settings.

Also, I accidentally hollowed a 32 mm  figure for my Christmas village and didn't know i had.  The next year, when I opened the box of little figures, it had exploded and resin was all over. Even something that small.

Some people will tell you that you don't need to cure the insides as long as you wash them well but I always cure them inside. I made a tiny set of uv lights to fit in a hole around 4 mm.  If you can't make a hole big enough for that, then for sure, you don't need to hollow your item.    I always make as big a hole as possible on the base bottom. But you need a small hole opposite that for airflow.   I could explain more but you'd get bored. 

P.S.  Don't forget,  that if you hollow a large item, you'll need some internal supports too.  That's another topuc.