My suggestion is withwhat you have: EX with sealant, wait a week and use Natty's Ive got all three Natty's so I would use RED. Maybe some pro polish from Poorboys ahead of the Ex. Dont know anything about
Meguiars products as those that i have are the
Nxt wax which is auctually a sealant. RANDAL from Exira, Iowa USA