so to summarize...
I forget who said this first, but: it's always better to ASK for help at the track than complain about problems on the forum. I'm not 'accusing' the OP of complaining, but in my experience if you tell the director, "hey (director), I'm not getting a lot of CR attention out there - can I steal a few laps with someone?" the director will usually be putting on his leathers before you can finish your sentence. That said, there ARE some days in B (and I) that can be pretty frustrating. It sucks, but it's part of the game. Everyone else on the track paid just as much as you did for your track time, so you only get 1/30th of a say in how the day goes...
Per Will: Control Riders WANT to bump you. They'd much rather be working with people looking to improve than policing people for making illegal passes and poor decisions. It's on each rider individually to not add to the problems.
per eE Jeremy (couldn't have said this better myself): "B" traffic seems like no big deal when you're ready for "I" group. (and) Even in "I," 98% of passes are made with the bike straight up and down, usually on the brakes. On a related subject, it's rare that I realize someone is on a bigger bike than me anymore. If I'm not getting around them, horsepower is almost never the reason why.
my opinion: CR's like to see you ride at more than one track before bumping you.
Per PJ: the color and letter on your sticker do not determine your worth as a member or rider, and certainly not as a person. If you want to turn riding ability into a contest, racing is always an option.