About to start bpc157/tb-500

Lots of varying info online about doseages to run with, but basically I think due to old injuries getting some lasting pain (a few days usually) in my knees when I lift heavy on leg days. Plan is to start 0.5mg of each EOD putting half subq in/near each knee. Just wondering if this seemed like a good doseage for first time. Its not really a chronic injury or surgeory recovery etc. Which I see some people taking much larger doses for so figured a lower dose would be fine?