I started my IGF on Monday. First day I did 40mcg in the right bicep, kinda on the outer head area. Then I didnt train yesterday and did 20mcg in the left bicep(outer head) then today after I hit chest I did 40mcg in the middle of my right bicep and about 1hr later it grew about 1/2" I never had bi peaks but my right bi looks enourmous with a huge peak. I usually use about 1/3 of the slin pin with BW water as well. Im presuming its just swollen, but that would be insane if it stayed looking like this permanently. I'll keep you updated.