By virtue of their electrical properties, tubes generate a special waveform when they're saturated, which is why tube engineering has tremendous tonal advantages over solid state or DSP solutions, particularly for crunch and lead sounds. Tubes enter the saturation zone gradually or softly, which lends tube-driven tone its trademark yet totally unique character.
View post (Locking tremelo outa whack!!! need help please.)
View thread
Well, you could just change back to the same strings as you were using before and everything should be fine or you could get someone in a music shop to alter the bridge. The guy in my local music shop altered the bridge for me when i changed from 10's to 9's and it took him about 5-10 mins and cost me nothing !