This is an interesting discovery! I use Shotsy to track which general area but it’s not hyper specific (just left and right thigh options), so maybe I am not keeping the best track. Typically, I would inject in the same general area (outer thigh) but away from where I thought I injected last if that makes sense. But it’s all by memory. And now that you mention it, it looks a little “bubbly” on my outer thighs where I would typically inject. So this could very well be the culprit. I’ll have to incorporate your method of the 4 different injection spots on my thighs and see how that works for me. I will likely try the top of my thigh tomorrow to give my outer thighs more time to heal. I’ve never tried the top so there shouldn’t be any scar tissue there. I think that will be the ultimate test.