I was looking at just this subject a little while ago and found this thread to be helpful:
http://autopia.org/forum/showthread....=glaze+sealant
Important points I gleaned from that thred:
- As long as the glaze doesn't have cleaners or polish, it won't compromise sealant's durability
- You can use sealants and glazes together
I have some #7 I still haven't tried yet, but I plan on UPP (x2) -> #7 -> carnuba, at least on my wife's car.