Most of the time the mosh is about 3-4 people deep from the front. So if you get to the front centre early, then you won't get sucked in. Just be prepared for a fight to get to the front, espesially if you are young and small, but at least you're a guy. If you get in a mosh, just go fucking crazy, then you'll be going the same pace as the others then you won't get as injured.
....Hmm many memories relived writting this. But bad, bad memories. Nothing to do with moshes, just the fucking dirty, pig headed, pedophelic man that was there.....enough said.