hey murf reef is definatly the main factor with the heavy leader double thumb the spool and pull the bigger fish of the reef ,after making some ground you can wear the fish out mid water letting them run abit with out fear of the reef busting you up.
also we hit the odd patch of big ajs and they will just bite you off with the lighter leader costing you plenty of gear (we have found the big reds and ajs will often be in the same area)
wayne
ps good luck at fraser we will be up just for looks not fishing just cheacking out the comp since it is the last