I didn't notice until I was processing my Spectro pics from Feb. <img src="http://www.themeparkphotos.us/cpg140/albums/uploads/053107/B/IMG_5175.jpg" />
Who has time to chimp? With the buffer of the 30D (which I did fill during Fantasmic! a couple of times) - you chimp the first/second shots, double check your exposure on M, then go back to shooting.
you guys and your chimping!! Last week I was aware of myself after many shots I'm looking at the lcd "chimping"