Got home from softball and did a little more experimenting with openings, specifically with the things mentioned in this TL post:
http://www.teamliquid.net/forum/sc2-...verlord-timing
I did a comparison with...
13 overlord/17 hatch/18 pool (which, and I'm completely taking that thread's word for it, is apparently standard meta)
vs.
something this guy saw Life do: 16 hatch (from double extractor trick), 15 overlord, 15 pool
For my benchmark, I decided to drone up to 30 supply including two queens when the pool finishes and see where we were at 3:00.
Results:
17h/18p:
- hatch goes down 0:52
- queens finish at 2:40
- 30 supply hit at 2:21
- about 1200 minerals at 3:00
16h/15p:
- hatch goes down 0:42 (10s faster)
- queens finish at 2:33 (7s faster)
- 30 supply hit at 2:23 (2s slower)
- about 1170 minerals at 3:00 (30 less)
I was surprised that for the corners the latter build cuts, it wasn't very far behind economically and might even be a win overall. The hatch finishing faster, and the faster queens, seem like a huge win for defending against early harass or cheese. It doesn't put you behind in drone count (although some of those drones are catching up on the back end maybe, which I guess results in slightly fewer minerals) and the amount of minerals you're down seems negligible.
One factor that I think plays in a lot is that going 17/18, you need to build an overlord at 21 to not get supply blocked at 22. Going 16/15, your hatchery finishes (giving you 6 more supply now in LotV instead of 2 likebefore) before you hit that 22 supply block, meaning that you don't need to make that next overlord until 26. That probably is what helps the drone production catch up.
Anyway, I'm still too chicken to go play ladder and lose 20 games until I figure out what's going on, but hopefully you Zergs find this interesting and maybe try it out.