Interesting stuff. I'm using 4iu day split into two for now but maybe I'll try doing 8-10iu every second day to experiment with the next pen. Your bones got thicker on 4iu?? Your feet and hands get bigger too? Rich piana said his hands feet and head grew lol
I was running it for 6 UI for 11 months straight and my head, feet, fists, ankles, wrists all grew... Old shoes/trainers dont fit anymore, went 1-2 sizes up. My wrist grew an inch and my anckles by more than an inch.
First i thought it was from the connective tissue getting bigger/spongier, but there is definitly bone growth and it is most pronounced in my skull and jaw...
Right now i cruise on 4.5 UI (1.5 mg) ED till my next AAS cycle when i will try 8 UI or more (depending on the money I have to invest atm).