I will say this... so far
I think HGH impacts me more physically than Test. My muscles are not as sore working out, I took 3 minutes of 5k time with way less training due to back issues, and I get more morning wood.
Have not tried HGH w/o test so this should be interesting how much the interact.
Test - impacts seem to be much more mental. I am way more ambitious with my thinking work, life goals etc. I also have lost my temper more this last year than I did the last 10 yrs.
Never really got the libido boost from either ... nothing like the horn dog of my 30's I was seeking.
How long have you been using HGH? What do you dose it at? I'm curious...