Transfer super-accept

I think this is an excellent example of Terry's "super accept" of a transfer and how it can provide a route to a good slam.

Holding:
Qxxx
AQx
AKxx
Kx

playing a 15-17 1NT do you open 1D or 1NT? The lack of intermediate cards (10 or 9) anywhere argues in favor of 1NT. So owngrade a point for this as my partner did. However when I transferred to spades the hand became a maximum and partner correctly bid THREE spades ... a maximum NT opening and 4 spades. Now I cue bid 4C as a mild slam try. Despite holding "only" 11 high card points they were prime:

KJ1087
Kx
xx
A987

Notice that there are no side suit queens or jacks in that hand. The auction proceeded with 4D (cue bid), 4S (no other 1st round control), 4NT (RKCB for spades), 5H (2 key cards and no queen of spades), 6S.

The contract is cold and was missed at all of the other tables after 1D, 1S, 4S. The hand holding the spade length might have moved on but apparently no one did. Chalk one up for Terry's methods and have a read of his book - "No Trump Bidding, Stayman and Transfers".