Inject a rock or an orange? Which is easier? The needle don't care about your glute pose. So let it relax. And don't flex in front of the mirrors at the gym, it's very annoying.
haha thanx guys, i tried it both ways and didnt notice much difference. But i thought there might be some reprocussions from being tense, havent noticed any yet but i thought id ask for opinions.
I've never tried to shoot a contracted muscle. Sometimes a muscle will twitch and tighten after I stickthe pin in and it's a bitch to pull it back out. I say relax as much as possible.