Just about any RLD title, though, is gonna move well.
While in general well-energized and starring two world-class, no-holes-barred super whores - Europe's Katja Kassin and Melissa Lauren - this is pretty standard 'bang for your buck fare.
Despite all the hard-edge staples one would expect in such a title, including d.p.s, double vags, double A's, air-tightenings and boat loads of man muck, there's a certain something missing, we can't quite put our finger on it (or is that in it?), that would elevate this above the pack.
Maybe it's the old bugaboos of most gangbang titles - too many guys in the frame or just the challenge of keeping the intensity up among all those bodies and the repetitiveness down.
Gang Bang 4 opens on a memorable note however as the Godfather of Hard-Edge, Uncle Max Hardcore, in full-on drill sergeant mode, sternly dresses down the male "maggots," informing them that at the last 'bang "the girl was allowed to walk off the set at the conclusion with her dignity intact."
"Gentleman," he intones in no uncertain terms, "this is not acceptable behavior."