Dave I got to give my GTK 74PG a bash for the first time this week and it is a terrific rod, I haven't fished the SJ but having used the GTK and comparing their specs I think it would be a winner, should balance nicely with the 8000 twinpower I have an 8000 Stella FA on mine
my second choice would be the KGS, had a brief go with it when fishing with LPB and saw the decoy land a 15kg GT with it on a plastic one night, nice rod