Animal, this is when you might wanna find an 'injecting partner'. "Lifting parnters that cycle together, stay together." It's a beautiful thing. But seriously, you can get a lot more 'use' out of your glutes, etc. and hit muscles you couldn't reach on your own, if someone else is shooting. I inject guys all the time, no big deal. I know, you might not have that luxury, but if you know someone, I just thought I'd suggest it.
-B