The water from intramuscular bloat increases the muscle cross-sectional area increasing strength MASSIVELY. (Muscle cross-section is directly proportionate to its power).
It allows better transport of certain nutrients too.
The water is indicative of increased estrogen which is also an anabolic hormone - granted anabolic to adipose! However estrogen will increase IGF levels, which is HIGHLY anabolic - as you should know.
Fact is, growth NEEDS estrogen, especially massive growth and restricting its prescence to the maximum by using only non-aromatisable steroids will affect your ability to grow in the long term.
Trust me, even if one uses the most powerful and watery AAS available (test, deca, drol, dbol etc) etc)$ it STILL takes years AND dilligent nutrition and training progressions and dedication to build an impressive physique.
There arent many who dont have to try - they exist, but they either become competitors in sport or they dont even think about starting to get off the couch!