I've been snooping around in the Russian forum, especially in the Bream and Volkhov topics, and I noticed that the guys that were very successful always had medium 8 or medium 6 hooks, they had full nets in 2.5 - 4 hrs with any where from 3 to 7 trophy bream, they are catching on all bait though there was mention of baits not always working. They switched baits out, once they weren't catching anything. I decided to try out a couple more things that were recommended to by some players in game. Switch to all flouro line instead of braid with flouro leader.
I will say that I had more bites on all flouro line and medium hooks, I'll be trying thinner flouro since I'm using 9.7 kg test I think it .39mm diameter, just need to save up some though.
I also noticed that bream seems to be very active during early morning (~4:00 - ~10:00 sometime later) and evening (~15:00 - ~23:00 sometimes later) to be fairly successful in catching fish don't target just bream. I generally go 0:00-3:00 target burbot, cats with night crawler, red worm and pieces of fish, then 3:00 - 24:00 go pea porridge, pearl barley, casters, red worm, blood worm, wheat grain, regular worm, and maggots for roach, tench, bream, and anything else that bites, I get a full net in about 3 hrs and quite often can fill in 2-3 cafe orders in one go. I think success comes in target a wide variety of fish and switching things up, no bites on a particular bait for 10-15 min change it, no bites at a particular spot move and so on.
when i was using braid and a flouro leader a 2kg bream was super lucky for me, switched to all flouro line (9.7 kg so pretty thick) i noticed a considerable increase in bites of 2kg+, im thinking go smaller diameter and I'll get even more bites of 2kg+, guys on the russian forum were catching on 5kg line.