I would be tempted to alternate between the two when you feel like waxing. Apply the NXT then a few weeks later after a wash tp it with some Souveran, that way you still get to be out driving not waxing.
I would be tempted to spend a weekend giving the car a good prep and getting a good sealant on there, that way you can throw on a coat off Souveran after a wash if you have time. Its so quick and easy to add a coat after a wash. ( Extra 10-15 mins)
I would be tempted to spend a weekend giving the car a good prep and getting a good sealant on there, that way you can throw on a coat off Souveran after a wash if you have time. Its so quick and easy to add a coat after a wash. ( Extra 10-15 mins)