I tend to go back and forth, depending on how I feel at any given time, between the R9 and my '57' Junior. Necks are nearly identical, but that P-90 can just cut when you want it. Then again, I fall back to a Strat now and again for something completely different.
An old trick, but works on my R9 - take the strings out of the tuners and nut, find a pencil (yeah, not easy these days!) and shave the graphite into the nut slots. wipe off the extra, restring, and it should help quite a bit. Pencil lead is just graphite, cheap and a decent lubricant.