Over the holiday break and more recently I spent some time at Yaks Wall doing bolt replacement. First with my brother Bill and then solo (55 lb pack ugh). Bill was a great sport hanging out on top for hours on the first day while I went at it out of sight below below.
Shoot the Tube: placed two new 3.5" x 3/8" 5 piece stainless with Fixe ring hangers; replaced two 1/4" rawls with leeper hangers and two 3/8 rawl split shafts - all with 1/2" 5 piece stainless. I extracted the poison oak (pulling as much of the roots as possible) that had re-established itself in the upper chimney - should be good for another 25 to 30 years now. Also I added one new bolt approximately half way between bolt number four and the top, so it's now a bit more sane for leaders.
(Footnote - I was the lucky one to get the very first lead onsite in February 1984, placing the original three bolts free stance, ending after dark and rappelling off the slung chockstone at the top with my last two slings tied together. Since it was a 45 meter rope, down climbing blind from above the first bolt to the ground was required. Our hike out, well after dark with no lights, was quite the adventure - multiple attempts trying to get down the slabs, eventually brush crashing all the way down the hillside from the saddle by Marmot Rocks to the rangers cabin. Back to the car near midnight.) I added a forth bolt a year or so later - on lead.
Dance on a Volcano: replaced the two belay bolts (3/8" split shafts) and six bolts in field (three 1/4", three 3/8" split shafts) with 1/2" 5 piece stainless and chains on the belay. Second bolt was moved down approximately 16" and slightly right to much better rock (a bit less ground fall potential when trying to clip too).
Split Infinity: replaced the two 3/8" split shaft belay bolts and five bolts (four 3/8" split shafts, one 1/4") in the field with 1/2" stainless 5 piece and chains on the belay.
It's been years since I've done Shoot the Tube. I will definitely be back on it next season.
Enjoy!!! Thanks to ASCA for the replacement bolts and hangers.