This is why I love Mexico so much. We have miles and miles of big unclimbed walls and anything goes. You want to climb it trad? OK! You want to place bolts? OK! Ground up? OK! Top down? OK! No need to go through a committee!
The only "rule" we have here is we don't mess with other people's routes.
Regarding my timed bolt placements, it was 47 seconds to place a 1/4" by 1 1/4" Rawl buttonhead (drill the hole and place the bolt) in Cochise Stronghold granite. That was in prime position everything laid out on a flat stone in the campground. It was pretty much the same in Yosemite granite. On route, I could generally place a bolt in a few minutes given a good stance. In sandstone, 3/8" bolts x 3" deep took about 2-3 minutes. The Waugh record of 3 minutes for a 3/8" in granite sounds amazing--don't think I could have drilled a 3/8" that fast in granite.
On route, it's all a matter of stance. Even with a pretty wired drilling technique, I recall spending about a very painful and tedious 1/2 hour placing a 1/4" Rawl on a ridiculously difficult stance on the Autobahn crux pitch (one foot on the tiniest smear, the other foot dangling, no handholds) because I could only get a few hits before having to readjust my stance (over the roof).