May be you should introduce a rule that a setup can only be recomped after 5 rounds.
Lately we have seen the same setups being comped over and over again and nothing new gets played.
New strategies and new skills will come up if new setups are played.
New types of wifom and new game meta will build up. People will have to scumhunt in new ways and enjoy new mechanics.
The 5 round gap will ensure that at least 10 different setups are played.
I don't think any harm will be done with this new rule. Moreover, we should not allow variants in consecutive rounds. For example armed and redacted is pretty much the same as armed and vested.