Hey fellas, how much you tip your barber for just a normal cut/fade

Before Covid a local cut was like $19/$20 and I would tip $5, but now a days it seems most barbers charge $30/$35 for just the cut, at first I was still tipping $5, but I found a dude I like and been doing $10, is that too much? Money is tight enough as it but didn’t want to under tip him, tia