I use 40 lb high res for main line and after losing 3 big slabs with nicked up 30 lb leader earlier in the year I now use 48lb Triple Fish (hard and abrasion resistant for the teeth) and have not had a single brake off since despite a lot of big ones on. Blow back is not a problem for us. Forget the pancakes rigger balls unless you have some reason to want to plane out to the side (once caught a 29.5 lber with a pancake down 40 feet out beside a rock wall with a kelp bed). We use 12lb balls with the lead fin most of the time but when the current is ugly and/or we are going deep, we switch to the 15 lb rounds with the fin. The only reason we don’t use 15 lb all the time is it seems to wear out the rigger cables much faster. Can’t yet bring myself to join the modern age and switch over to braid.