Injection timing on off days

I'm planning on running 40 mcg of IGF for 4 weeks. I think I'm going to try taking 2 20 mcg injections post work out, one on each side of my body. My question is on the days I don't work out, when should I time up the injections? Should I do them both at around the time I normally work out? In that case, I work out at noon on monday and 4:30pm tuesday-friday. Any input would be appreciated.

I would split them up and do one on the early side and one later in the day, IGF-1 isn't active that long in the body so I would try and keep your level higher for a longer period by splitting them up, at least that's what I've had the best success with personally