I'm kinda glad that you came out with that MunsterMan. Every good team get's accused of stuff like this. McCaw is always labeled as a cheat from opposition fans, and Munster were always considered to be on the edge. A couple of season's ago when Munster destroyed the Ospreys in the HC quarter final, I thought the Ospreys were increadibly naive that day. While Munster played the ref brilliantly, getting away with what the ref deemed acceptable, the Ospreys were playing far more honestly. I feel the Ospreys have come a long way in the past couple of seasons, especially this year, because they've added that 'grit' to their arsenal.
Now, I didn't notice too much interference around the rucks, but I wasn't looking out for it. If you say there was, I believe you.
Lee Byrne needs to calm down on occasions though. He was guilty of two high tackles in todays game, and that's two to many imo. The first one wasn't dangerous, just kinda snagged him from behind. But the second on D'Arcy was quite a bad one and could have resulted in a yellow card on a nother day.