Technically higher "quality" weed would have higher THC content, and less other receptor binding. So drough not swag, and Indica and not sativas would hit more in your head and less in your body.
swag being mostly the other numerous receptors and less THC would obviously be a poor choice as it makes you lethargic and relaxes the muscles.
Sativa is more body high. Which I personally prefer, but would be less beneficial for the "concentration" thing that most of the guys are saying is a boon.
I personally dont buy it, working out is fun on weed, I do it every once in a while when I feel like it.
But dont think it helps you, its just entertaining. Which is valuable, but chemically I just cant see any way that it benefits anything anabolic.
If anything decreased aggression, decreased CNS activation, lethargy, and likely increasing estrogen are all bad things.
Now for the average steroid user jacked up on 2 grams+ of heavy androgens and high strung as balls, a little relaxation is nice, I can attest to it.
And my letro covers your puny estrogen like white on rice.
So no worries.
But be careful, with sufficient weed + enough juice + enough letro to keep estrogen low normal.
You do not give a flying fuck, limited emotional capability, you do fucked up shit sometimes if you dont approach emotions from a logical perspective when on cycle.
Just complete apathy, hilarious, but sometimes not good for personal relationships.