Anyone Here Wear A Partial/topper Hair System?

I'm a guy with longer hair and recently started wearing a partial hair system to cover the area that was thinning on the top of my head. I don't see a lot of info out there about longer haired partial hair systems, so I just wondered if anyone here wears one. I mean a proper hair system where you shave the top of your head and bond the system to your scalp with tape and/or adhesive, but you still have your natural hair on the back and sides and you blend the hair system in with your real hair to give the look of a full head of hair.

Does this work ok for you? How long is your real hair at the back and sides, and how long is your topper hair system? Would be great to hear more about partial hair systems for longer hair.