You should generally try to learn a variety of builds. While what you're doing is smart, it's also pretty easy to counter if scouted and as you go higher in the ranks you'll run into better scouting. You don't want to rely on one build for all of your wins because then when you stop doing that build you'll be completely outclassed.
Marines will beat your ...
To get an ultra-gas heavy composition like this, you're going to want to start with a macro build order like Idra's 14 pool, 15 hatch:
14 Spawning Pool
No need for an early extractor, because this will get 4 extractors going quickly, and you've got a lot of teching time ahead of you. As you ...
To start this off, there a billions of timings against each race that you need to learn and become aware of in SCII. Being at a "near diamond" level, you should be aware of the timings in the following list: Here on teamliquid
If there is no expand at 5-6 minutes, according to the current meta game, it means you're being cheesed or all-in'ed. Possibilities ...
According to Resources - Liquipedia a drone gathers 55-60 minerals per minute. Let's take the average of that and say it is 57.5. This equals to ~ 0,96 minerals per second.
One worker on one mineral field gathers 55-60 minerals per minute
(80-85 for gold minerals), depending on distance.
As you said the cost to delete an extractor is 6 minerals (~25% ...
You're looking for standard openings. Obviously by now with SC being out for years, there is an established meta with each patch changing it slightly.
This is subjective, as the things that separates builds from being successful are micro, player skill, opponent's decisions, maps and tons of other variables.
There have been hundreds of unit combinations ...
Starcraft is a game about timing
Having the right structures/army at the right time is what starcraft builds are all about. Time is the most sacred resource in Starcraft. Builds are basically "time-tabled" guides to give you an advantage over your enemy at the right time, while avoiding your enemies timings. Avoiding in this context means stuff you can get ...
There is no build High Capacity Fuel Tanks is an essential part of. It is indeed almost never researched, because Tech Lab time is much better put to other upgrades.
Players who specialize in heavy drop play, like TY, do sometimes get Fuel Tanks in late game, but then again, it is hard to judge whether Fuel Tanks are good, but simply least good and hence ...
The key here is not to follow builds, there are some builds which you can do almost no matter what your opponent does, but these are usually cheesy or all in.
The better thing to do would be to have a general idea of what you want to do, but only do so if it is safe or appropriate to do so.
The way you tell if it is safe is to scout. Look at what they're ...
The units that you mention are a very popular composition in a Zerg vs. Protoss match.
But can work against a Terran Mech player aswell. Though I would cut down on the Vipers versus a bio playing Terran.
One of the best fights I can think of, where these units gets the work done, is between Stephano and BabyKnight. Follow this link, and find game number 2!