I have that combo in my RG-ART, the TZ/AN combo that is. It is without a doubt my best sounding guitar, but it's basswood with a thick maple cap. The alder in your USRG is probably going to be a little snappier. The TZ is nice and fat sounding, very big and not too mid heavy at all, but not scooped either...I find it to be the all-purpose pickup. If you find it too bright for the alder, maybe try a Steve's Special (like on the Petrucci models) I've got one of those too and it also sounds fantastic...but again, in basswood. Definitely more scooped than the TZ, but depending on the amp it can sound nearly identical, with just a little less emphasis on the mids. The TZ sounds just a bit more open and natural than the Steve Special, they are both fantastic pickups.
As for the AN, it's great. Nothing more to say on that. I'm flirting with putting a TZ/AN setup in my VWH as well, the evo's are just too much for me, very harsh and brittle sounding, just not my cup of tea.