Recently I purchased a new manfrotto 3221wn tripod and a manfrotto 3047 head for my RB. Today I had raised the tripod to its highest limit without raising the center column just to see if I could detect camera shake. I may have noticed very, very little, without using the "mirror up" function, even at that height. So, I know that using the mirror up feature will take care of any movement that may have been there. Even still, I can't imagine me not using the mirror up feature when I'm using a tripod.

I think the noise is to be expected but I would be suspicious of any real detectable shake that can be felt.

Chuck