So here you are as a fellow Brotoss getting ready to make a quick expansion off of a 3 gate expand.
You see an attack incoming and realize you are woefully unprepared for this attack. You only have 2 stalkers!
So you warp in 2 Zealots and a Sentry, which is still not probably enough.
You rally your warping in units to the natural to help in the defense but knowing you are still outgunned you need MORE! You glance at your chrono boost and notice you have 50 energy, and 2 of your 3 warpgates will be ready quicker then the 3rd (because they made Zealots). So you want to use the 50 energy on the two that warped the zealots.
Now comes the question:
Now normally before I did some experimentation I would have just said "idk and I'm not clicking each one individually so I'll just chrono a random 2 and hope it works!"
Now I can tell you however:
What? How do I know? Because of where I spawned the units. Yes that is the key. The closest Warpgate to the place being warped in is the one being used. If you look back to step 2 I spawned the left Zealot first, right Zealot second, and the Sentry third. Based of the location where I spawned them you get this:
Don't believe me, here's the proof:
For the record, I tested also this theroy with hotkeying the gates in a sub optimal way, and even with tons of X-Y plane testing. It's how it works.
Since I found this out a whole 3 days ago I never have to look at gates anymore to chrono the right one, and I've begun experimenting with different end game warpgate layouts to optimize the searching process.
So I know this isn't like change everything huge, but it should help some people out, as I know it's helped me out!
Much <3 TL