In my opinion, what
may be killing your tone is too much magnetic pull from the neck pickup location - it's a result of using too powerful a neck pickup. Strats are even worse, you've heard of "wolf tones"? Caused by the neck and middle pickup magnets....
bridge: SD hotrail+JB jr.
middle: duckbucker + hotstack
neck: lil59+coolrail
And now, you want to put FOUR Strat pickups in the higher positions - you'll be lucky if the strings even vibrate. :icon_scratch: Guitars like the PRS "513" and the Music Man Morse signature are specifically engineered around this problem, with lower-powered pickups using special wiring combinations - the above looks disastrous. But, you can always come back and chat about it! :toothy12: