Week 9: Cardio & some light lifting. Saturday injection again. This is the end of my 4th week doing injections and this being the 2nd of only injecting once per week. Everything that I have read says this week I should feel the best as the TB500 really kicks in on the 4th week. Elbow feels fine. It doesnt hurt during my lifts or after them; however there is this stiffness feeling and if that was to go away I would call it cured. Maybe a few more weeks.