I did 4 nights on St John's last year ... first time I had been to linear, and really enjoyed it on there all the anglers I met were enthusiastic and sound to talk to . Don't believe everything you hear gents , St John's, Manor , Hardwick & oxlease all hold some proper looking carp of course it's gets busy but thats because of the fish in these lakes .
B 1 & 2 are a different kettle of fish and probably will never fish them personally.
As for boilie choice baitworks make solid bait that will catch from the off and the matching pellets are awesome and well worth a look
If I get a chance in between all the socials this year and Fishing Horseshoe I'll go back for another go hopefully at some point .