He had me strip (he made me strip): this means that I did the stripping.
not the past perfect.
He had me stripped (he made someone strip me): this means that someone other than me did the stripping of me.
This is the past perfect of to have someone stripped, and is different from the past perfect of to strip someone - past perfect of that would be I have stripped someone: this would mean that I did the stripping.
I can see that this is a little complicated. The important thing is, I suspect, to be clear how the causative have is used.