Both?
Seriously, I’ve done either and both. I really like HCW and I haven’t yet found a “wrong” way to use it (not that I’m trying to, but, you know, stuff happens)
... or you could use Hybrid Ceramic Detailer after your 24 hour window (or sooner). green bottle) That’s a great product too.
But if your goal is to minimize product use (waste?), yeah, waiting until your next wash is fine.
Enjoy!
Ken