After doing an NXT wash, AIO, and UPP, UGE I took my car into the rain and noticed that there was a little beading, but not much. Is that to be expected? That UPP won't bead like wax? 
In a month or 2 when I do a full routine again I'd like to add a carnuba topper like LS over the UPP, but I'm unsure how to maintain this.
Do I wash and then just re-LS monthly? Would S&G be ok to use over the LS as a QD?
As you can tell, I'm uncertain how to maintain a carnuba and so any advice is appreciated! Thanks!

In a month or 2 when I do a full routine again I'd like to add a carnuba topper like LS over the UPP, but I'm unsure how to maintain this.
Do I wash and then just re-LS monthly? Would S&G be ok to use over the LS as a QD?
As you can tell, I'm uncertain how to maintain a carnuba and so any advice is appreciated! Thanks!