Too bad you did not replace all that front end stuff while you were under there. It is pretty easy to do when you are doing the front struts anyway. You'll have to get another alighment.
The Dinan springs must be pretty close in spec to the factory M-tech springs given the minimal amount of drop. Did you change the upper spring pad to 3mm versus 9mm?
Mike Holbrook
Meridian, Idaho
1992 535im, 17", Euro M5 Throwing Stars 8's & 9's, FK-451 235/45s & 255/40s, M5 Sway Bars 25/20, Conforti chip, Lowes Ram Air, glass sunroof