I use Liquid Luster if you can still find it. Its carnuba as well. No residue. 2 coats of wax is more than enough! Don't over apply wax. I use Dawn liquid dish soap to remove old wax then reapply. Trust me, I have trophies from my paint jobs!!
The painter didn't tell you NOT to wax for 90 days:violent1:?????? That is if its basecoat/clearcoat. If it is then don't be surprised if your paint job starts to bubble up here and there due to trapped solvents!
I use California Duster on all my cars.