It looks to me that you would want to do weekly injections for the first 21 days to ramp up to a steady/higher level and switch to a bi-weekly injection scheme to limit the variance (i.e. produce a higher mean between injections), thus have a more consistent level of gear in your system at all times. None of those values are given, so I'm just eyeballing your graphs.
I must say that is pretty cool. Do you mind sharing how you got those. Did you collect all the data yourself?