Regarding this, ignoring the "legalities" (about which I have little to contribute), I have two conflicting thoughts. The first is that for informal pick-up (e.g., individual) games where my partner says "I play 2/1 with double-upside down Drury" (or worse yet, asks to play their info and has 12 conventions listed), I like to be accommodating. In such cases, I may need to take a quick glance online to remind myself of the responses to a 2D rebid... This has nothing to do with regular partnerships, though - just to facilitate pickup games. By contrast, following the "I can review online materials" to its absurdist conclusion, one might believe that some quasi-optimal scientific method would be the best approach to bidding. The reason these don't gain more popularity in "real life" is that the alternate branch on the fifth relay is hard to remember (for both partners). Thus, allowing "reading material" clearly has its limits in terms of fairness. Otherwise, we'll just get into complexities that, for me at least, would damage the game. So, as usual for me, I'm a radical moderate. I say, "sure - check the meaning of a few conventions or twists in informal events and pickup partnerships, but otherwise it's a bad policy. -- MM