lets do the math!
23 pitch climb
reportedly 12 bolts per pitch for 21 of the 23 pitches or something
12x23=288. let's just say 250 for simplicity's sake.
time to drill one 3/8"x3" hole by hand = half an hour if your drill is sharp and your hammer is heavy
time to drill with power drill = 30 seconds
drill time for hand drill - 125 hours, or about two and a half weeks steady of eight hour days doing nothing but tap, tap, tap
drill time for power drill (assumning extra battery packs) - 125 minutes, or about half a day including all the rapping and wrench tightening and so on!
hmmm