Satinsnow: I guess it's a matter of "practice technique, grasshopper..." I was right now thinking of using a monopod to be more steady. To practice breathing never hurts, either...

David: Strange this, I never had any issues with vibrations or mirror slap with the Spottie, except with the 135 lens. But I may have to have a look-see on the prints and negatives again...

TLRs and wide angle lenses are normally my best friends when it comes to rock-steady stuff.