Read the PBS manual. Takes 45 minutes, it’s free, and you’ll instantly be smarter than most of the guys you’re bidding against. Go to PBS, system documents tab.

Seniority at play, if you’re a new hire on the bottom rung of your BES the best bidding strategy in the world isn’t going to do much.

http://prefbid.com/ is also a great resource. It’s a private forum staffed by PBS volunteers, and a wealth of information. Chances are all your questions have already been asked and answered there.

Or throw $600/year at Bidnav, but it’s PBS solutions are too rudimentary for me.