Thanks Rodney!
That's what I've found so far, there's "more" of everything, particularly treble (unsurprisingly), and the 2.5 kHz peak is more prominent.
Great for cutting through a mix, but more difficult to get "sweeter" sounds. And of course the bridge position is a bit thin sounding to begin with (not a big fan of bridge only in general).
I'm comparing a standard Z coil in the project guitar to a WR in the tribute Comanche, so it's not apples to apples, but I've got similar strings on each now and I'll play with pickup heights and report back