ShortScale.org

have you tried it the other way? I had it that way for a little while, maybe the tuning stability was better. it was impossible to use the trem in any kind of controlled way though. why do you think it would change the tuning stability? maybe it doesn't let the bridge slide around as much? honestly, the tension doesn't seem very different on my fingers. it took surprisingly little adjustment to get the bar to lie flat and there's still a good amount of break angle between the bridge and tailpiece.

what I wrote there was kind of based on how I set it up after I read the mustang section here: http://zeus.lunarpages.com/~jimshi2/service/

maybe I should take some pictures?

yeah, with the springs in stock position, the trem did not return to the correct pitch after use. It felt more like a worn out Bigsby then (11'strings)

This is a great resource. Thanks.
I have my tailpiece set quite low and springs at maximum tension. As a result, it is very difficult to rock it back and forth with my hand. (using 11's). Seems to improve sustain too. With tailpiece low, it seems the string tension of the strings is so high that it is very hard to rock the tailpiece backwards (i don't have a bar).