Mate you have discovered my absolute most favourite way of chasing bream by trolling HB's.
A mate and myself have had a few massive sessions on the Parra and in some have landed over 50 bream in a morning on the troll. There is a bit of an art to it but we used mainly SX40's, SX48's, Attacks and Chubbies. There are a few hot spots if you find them your on a winner.
Great report mate and well done.