You will find that bass and drums often reside in the Mid channel whereas wider elements, such as stereo reverb and pannedelements, will be found occupying the sides. It's incredibly useful sometimes to have a listen to this split signal on a stereo song as it gives you an opportunity to get a glimpse 'under the hood'. Maybe there is some strange resonance that is problematic only in the Mid channel that you can get rid of with a surgical EQ with a narrow Q cut, while leaving the nice sides alone. Maybe you wish to roll off the bass in the Side channel - to tighten up the low-end and focus that kick drum.
I'm currently on 800mg/wk using a test400 blend, up from the 500/wk I started this cycle on. Personally, I don't really feel that great at 800mg/wk, and I haven't noticed any additional gains other than more zits/headaches. I'm going to start pushing the pinning further apart until I feel better. Also, I don't think it's a hard and fast rule on the test/eq ratio. If it's your sex drive you're worried about, you can bump the test up, or add proviron later on if it really becomes an issue, but I doubt it will at 600t. Also, if you're committed to trt, which is typically for life, why bother with PCT?
Konstantinos Vasilis Petrides ("K. V. Petrides") proposed a conceptual distinction between the ability based model and a trait based model of EI and has been developing the latter over many years in numerous publications.   Trait EI is "a constellation of emotional self-perceptions located at the lower levels of personality."  In lay terms, trait EI refers to an individual's self-perceptions of their emotional abilities. This definition of EI encompasses behavioral dispositions and self-perceived abilities and is measured by self report , as opposed to the ability based model which refers to actual abilities, which have proven highly resistant to scientific measurement. Trait EI should be investigated within a personality framework.  An alternative label for the same construct is trait emotional self-efficacy .