Different hands call for disparate techniques. On some, a suit must be established. On others, entries in a defender's hand must be removed. Occasionally, however, a declarer must be patient. On these hands, let the defenders do what you cannot do for yourself. John Koch shows us the way.
In addition, you might note John's reference to a convention called "Kokish." Named after Canadian expert and coach Eric Kokish, this convention is most helpful when dealing with exceptionally strong, balanced hands. Opener bids 2C with all balanced hands of 25 or more points. Responder bids a waiting 2D, then opener bids 2H. Two hearts is either a strong 2 bid in hearts - or a balanced hand of 25+ HCP. Responder must bid 2S next, irrespective of what his hand is.
If opener has the big balanced hand, he rebids 2NT. Note that this is forcing! Even if responder has no points whatsoever, partner may have game in his own hand. System is on over 2NT.
If opener has a strong 2 bid in hearts, then opener makes whatever his normal rebid would have been in a "natural" auction. 3H would be non-forcing; responder could pass with a bust. Any new suit would show a strong 2 bid in hearts, game forcing, with something in the new suit bid. "Kokish" is a most helpful system for handling extremely large, balanced hands, with less guessing necessary than in standard bidding.
Thanks to John for introducing us this week to two very helpful ideas!