11/02/2012 02:19 PMthanks guys. Now lets say im positioned right at the top of that ramp after my 4th, so im defending my 5th. And he gets his entire army of say....roach ling ultra and goes for my natural, the PF slows him down, but at that point should i go for a base trade?
Posted by John
The "correct" answer is that you're scouting should spot him before he gets to your ramp and your planetary will stall him for the 3-5 seconds it takes your army to engage him.
The "realistic/non-pro" answer is "it depends"
In general, if your army has to get through a wall of spines before it hits the first hatch, I'd turn back and save my main. (You can float your production to the space between the third and 5th since that area should be secure and you'll be maxed anyway)
Between extra planetaries and macro orbitals you shouldn't feel too hurt by the loss of supply depots at the main. The addons should be fine since if you're maxed you won't need all your buildings producing non-stop.
So it depends on how many planetaries you have, where they are, how many spines zerg have, where those are, and judging if you can race based on that.
But you should really intercept before their main army hits a weak point in your defense. Planetary + wall should stop runbys and backstabs, but it will only last seconds vs a main army even with scvs.
If you're running out of mineral patches you could also leave extra SCVs at PFs on autorepair and depend on Mules for mining mins.
I don't have the multitask to do all that though, so I know it's really hard and there's a reason pro players can do it and I can't.