Zerg Tips and Gas Spending / Tech Choices

I've been laddering a bit and playing with friends, and watching "learning" videos again.

Here are some of my takeaways and thoughts on gas-spending:

Tips:

• More gasses at 35 drones
• Get to 70 drones!
• 5min macro hatch w/ling/bane
• Use extra queen energy on 4^th base hatch (you can stack injects, did you know?)
• Expect the 5 minute push
• Leave some units in main base, to handle drops, and have them on a separate hotkey

Early Gas usage choices:

• 100 - lair
• 100 - ovie speed
• 100 - +1 melee or ranged
• 100 - ling speed
• 50 - bane nest
• 50 - 2 drop ovies (needs lair)

Next tech choices:

• Nydus
• Roach speed
• 3x ravager
• +1 carapace
• Hydra den

Choices by Goal:

Map presence choice (first 300 gas):

• Speed, +1 melee, bane nest, 2 banes

Tech choice (first 300 gas):

• 100 - ling speed
• 100 - lair, roach warren, evo
• 100 - +1 ranged

… into speed roach.

Heavy-Harass choice (300):

• 100=Ling Speed
• 100=lair
• 100=ovie speed

… into heavy expand or Nydus. Build units based on scouting, and start double upgrades!

Tech Progression Choices:

#1:
Roach/Ravager/Overseer + Viper/Corruptor (to protect the vipers), Maybe Add Swarmhosts (since we did ranged upgrades)?  Endgame = Corruptor/Viper/Broods

#2:
Ling/bane/hydra/Overseer + Infestor (Endgame = Ultra/Corruptor/Infestor)

… if Nydus and Hydra, harass or defend expansions with Lurkers.

... add burrow for Banes/Roach tunnel/Infestor