Regarding the “what’s trump” when playing Kickback (this applies to Minorwood, too), setting trump—if possible--is at the top of the list of concerns. I had a similar “discussion” a year ago on this forum, although it pertained to 4NT as the ask. When a suit is used as the ask, it’s even more important to “set trump” to avoid misunderstandings.
So, for example, 1
– 2
– 3
– 4
---------- this is Kickback for
because if responder wanted to set
as trump, he bids 3
over 3
. . . he had the opportunity to set
as trump, but did not. This is one of the more important meta-agreements that should be discussed.
Another auction is this: 1
– 2
– 3
– 3
. What’s trump? Lacking 6-card RKC, for me trump is
. I read a forum post long ago by Justin Lall who espoused this method. Who am I to argue?
These are all good discussions. If I had a regular partner, I’d want to type up a thorough set of agreements for these auctions. I already started my list a few years ago, but never finished it. This forum is a great place to raise this topic!