I usually prefer glute injections, however, this cycle I am hitting quads 90% of the time due to the pain factor. I'm using QV250 from the 50ml jug (higher BA than 10ml) & I get some harsh pain & serious knotting so, it's easier for me to deal with the pain in my quad & it seems to spread out better & the pain subsides earlier. Probably from walking/working the muscle more. It's really uncomfortable trying to sit or sleep with a big painful knot on your ass.