I am also very interested. I was about to buy the Whitelines for my wagon, until an e-mail from them said the drop on the "standard" springs would be ~35mm all around. More than I wanted. Please make accurate before/after height measurements. I hope the drop will be 1" or less.
Doug I dont think youre gonna see much drop in your OB with just a strut swap. The springs are gonna be what you need to swap to see any real drop. I dont know what the difference is between Legacy and OB struts exactly, but you could well end up oversprung also by just swapping the struts (or the strut not even fitting at all-not extending far enough to reach the strut top mount.) Do the OBs have taller springs than the Legacys or do they use blocks? If they use a blocks maybe removing them in combination with a strut swap could get what youre looking for.
Ive been curious what accounted for the OBs higher ride vs the Legacy. Can you enlighten me?