Those are really good guitars. And P-Rails look like a great match for them. Do you find a big quality difference between the two guitars? Did they sound similar with the original pickups?
Actually I only installed the P-rails on the Sterling model...the original pickups in the Sterling were OK but the Music Man Valentine's pickups have much more clarity. The bridge pickup really does have that tele thing but using the tone knob can get you some p-90 tones as well. Can't say the same about the Sterling pickups. Plus the silent circuit on the Music Man reduces so much of the 60 cycle hum. The Music Man is definetly the higher quality guitar, but I love playing the Sterling. I did have to level the frets on the Sterling but I usually have to do that to most imports I purchase.