Its basically popular because it hits like a freight train. and then its gone.
Running high dose test will make you strong. But if your trying to stay in a weight class, running 2 grams a week of test is going to make you hungry and big as hell, even with an AI; significant water retention and of course straight muscle tissue gain.
Hence the popularity of running lower test with a long ester and using a more androgenic drug as a primary, say tren or mast, with say 250-500mg of Test E a week, then immediately preworkout throwing on another couple hundred mg of suspension and 50mg of dbol.
Youve got the dbol all at once, so it hits like a truck for a few hours, huge strength, enough aggression to hurt yourself, you get the idea, but less water retention and anabolic effect than if you were to spread say 20 mg of that out in through the day, then 30mg preworkout, which is my preference, or simply straight spreading it all out, which many like but I do not prefer.
Anyways, Boom, huge test level, immediate strength and aggression, but a short half life and its gone a few hours after the workout is over.
So youll gain less weight, hold less water, even though your running 2 grams of test and 50mg of dbol a day, your going to put on less weight simply because your throwing it on all at once preworkout and letting the half life prevent it from really making you gain weight, etc. Basically its a way to use high test/dbol for strength but not size.
Now this is the primary usage for test suspension as far as the guys I know.
But many will simply run high test and then throw it and dbol in on top as a preworkout, I understand the dbol, but I feel that if your willing to run high test and throw suspension on, just run MORE of the longer ester test instead, its cheaper.
If you PLAN on weight gain, then its simple, no need for fancy gypsy talk, I say HIGH Test, all longer esters, Id vote E or C just for ease of use, but certainly Prop is a favorite if you dont mind injects, its better in my opinion, with an AI, high dbol, ATLEAST 30-40 mg preworkout, and a primary androgenic, Id prefer Tren as its a monster, but Mast is clean, comfortable, and doesn't rape your lungs, which you have stated is a priority here. And I would add in GHRP-6 and run it split 3 100mcg in morning and 100mcg preworkout, then 200mcg post workout.
Joints, strength, size, recovery, aggression, cheap, effective, simple. You get the idea, elegant.
Forget suspension and winny and fancy things.