I myself Like variants of the Rattle snake But not the Rattle snake as published(9-14, 23-19, 10-15?) the third move being a bit on the weak side to suit my taste. I would much perfer 11-16 on the third move but all togeter on the 9-14 opening I usually stay with Double Corner Dyke (9-14, 22-17, 11-15, 25-22, 15-19). Tinsley himself thought it was an inferior opening he just couldn't find anyone to prove it to him

I was going over the list of banned openings. (114 of them) and can't believe that many are "thought to lose" but the big boys must know what they are doing.

This is true but this head line is straight of the ACF Page "The ACF is preparing to extend the current 144 three-move deck to 156 openings. This will include 11 new openings that are now believed to be drawable after years of analysis and mail play. "