Friday, we worked on transferring Pard to a major after he opened 1 No-Trump. That's the easy part. What next?
Trust Bob Dylan to warn us: "Mixed Up Confusion" (1962) can be the result if you don't take time to understand the message you want to send.
Firstly, we only transfer if we have five or more cards in the major. It is possible Pard may have a doubleton in the suit, so our rebid has to take that into account to avoid a seven-card fit.
Secondly, our rebid is going to show our point count as well as our distribution.
If we only have five cards in the major, our second bid will be in No-trump, NOT the suit! That way, Pard will know we have five.
If we have six or more cards in the major, our rebid will be in the suit. No danger of a seven card fit.
SO!! Our second bid will show BOTH the number of cards in the suit AND our points. Ready?