https://www.steroidplotter.com/
Play around with this. Looks like if you front load an extra 400mg every shot for the first 2 weeks, your serum levels will level out around day 10. If you don’t front load, your serum levels are just coming up to level around the time 12 weeks is up.
Edit: that’s assuming a shot every 3.5 days. Play around with it though and see what works best.