ibanez sr mk1 replaced with mk4 help

before putting in the mk4s i put a new preamp in thinking that would make a bigger difference than new pickups. i mainly wanted to lose the brittle harsh highs that i just could not eq out of the mk1s.
the new preamp is nicer than the old but it did not loose the high brittle thing. the new preamp has been in for about a year. so finally decided to change the pickups.
the mk4s sound like what everything else i read about them sound like over the mk1s.
fuller lows. not as muddy. mids are punchy. highs are much better. rounder. fuller. the mk4s kind of sound piano like in that they sound clearer. oh and the preamp has a gain pot that i had to turn up because the mk1s output was so low. when i got to testing, the mk4s sounded distorted until i realized i had to turn the gain all the way back down because the mk4s have way more output.
so i am happy.