Mike, I'd be curious in your evidence re: effectiveness of "simple" big club systems. It's been my expirience that even a fairly simple big club (say, plain jane precision, 2+ 1D, 13-15 NT, trump and control asks), will consistently outpreform or at worst equal a typical "club expert" 2/1 system. Also, the auctions you normally win big on are NOT the 1C auctions, but auctions like 2C (intermediate) - 3C - AP, 1M - 4M, etc. Tend to do pretty well on the 1C auctions too though.