I use lateral thigh for everything. Years ago I read to stand at attention, see where your fingers fall on the side of your thigh and go there.
Even if you get sore the first few times, it won’t affect movement like quads.
Quads are way too riddled with blood vessels, etc. for my liking. You have to be really careful. Lateral leg is easy peasy.
We’re all different, but hope this helps..