I like Dot Torture, but as a test more than a drill.
It's really 50 rounds of shooting groups, with a little extra stuff mixed in to mess with your grip. For round-limited drills, it's not something I'd focus on...
Shoot a couple groups, a little SHO/WHO, and be done. The rest (draws, reloads) can be done in dryfire. as I said above, Garcia dot drills are better use of limited live fire.
I do like to pull out dot torture a couple times / yr at our club practice nights to hear the groans from the guys who aren't used to slowing down and getting hits! ha!
-rvb