Time to aclimatise :D
Also, I think you want to fiddle with pickup heights. I've just been posting one of my "essays" here
http://bareknucklepickups.co.uk/forum/index.php?topic=14664.0 to try and explain what I've learnt over the last few months, you can find all sorts of threads about it though (there was one by, I think, Hunter, about strat pup adjustments in Tech).
I've only experienced ITs, but to get fatter
and fruitier at the same time (and we'll have different ideas about what that means!) I lowered the bass side of the pup and raised the treble side:
Higher treble side means "thicker" and more output.
Lower bass side means more clarity and, for me, therefore lower ouptut, capable of being "fruitier" (bubbly hendrix sort of sound).
Just measured it: on my neck pup, the pickup cover is almost 4mm lower on the bass side.
I'm sure someone might say - "are you sure you want an IT neck for what you describe? I'd have thought you want an Apache?" That was my first reaction here, based on "fruity"... but words to describe sounds can be misleading...
Anyway, it took me ages to really start loving my ITs. They were obviously better than what they replaced, but I was gripped with doubts as to whether I chose the right ones... I wouldn't part with them now (instead I want another few strats with different BKPs in :lol:)