I did this in 8 pitches as well, but we did it a little diffrently and got off with a single 60. From the summit of the mudpile we un roped and did the down climb. And then climbed that the pitch to the top of Mini Half Dome. I think if you belayed from the anchors on the N end of the Mudpile you could do it in 1 60m pitch to the anchor on Mini Half Dome. Then from the summit of the Opossum we did 1 pitch of about 5.1R along the ridge traversing NE to an old anchor with slings where you can do a single rope rap to the N.
thanks - I added your description to the traverse page. Thanks for submitting the recent Smith aid line pages too - cool photos!!