I find that questions like this can often be answered by the use of Truscott's "The Bidding Dictionary." In this case, for instance, I found that the sequence 1H - 2C - 2D - 2H has the following paragraph in a footnote: "A modern treatment is "first-suit" forcing. The two-level preference is a waiting move, not promising support, and opener describes his distribution further. (David Morgan, Bridge World, Feb. 1988.)" This is a wonderful book that allows you to find answers by looking up a bidding sequence. It is a reference book in the truest sense and not a tutorial type of book. Pelican (Bob) :D
