1 keeper waiver spot

.5PPR 10 team league. We keep 1 based on draft position in previous draft. How do you decide what round waiver wire keepers should go? Thanks!

I’ve been in a league for several years where anyone picked up off waivers can be kept for no better than 9th round pick.

We do current ADP minus 4 rounds meaning Josh Allen I got off waivers last year. His ADP was round 10 so I got him in round 14