The sweet spot for thighs is between your waist and your knees, at least that’s what I found. We all get bruising; I think the only way around that is to inject 2 in stomach and 3 in thighs in this case. Reduces the bruising in one place, tell her to keep trying different spots on her thighs until she finds the right spot that doesn't draw blood or hurt on her thighs. It takes time to perfect and I can’t say I have it perfected.
[edit] I just did a thigh injection and I think it’s a bit lower (towards the knee) than half way point for me. Its worth experimenting with. [/edit]
