(19)20-21 bal inc most hands with a 5c M
offshape possible if a 1C auction looks awkward

..3C: Simple Stayman
..3D: Tfr H
..3H: Tfr S
..3S: Both minors
..3NT: to play
..4C: H
..4D: S
..4H: C
..4S: D
..4NT Quant
..5minor: why?

..3D: No Major
……Then 3M = Smolen SHOWS 5+ OTHER M
……4m = Nat Slam try
……4NT: Quant
……4M = 6M 4oM

..3H (EXACTLY Four H, can have S, can be 4S/5H I guess)
……3S: ART: H slam try
……4m: S + minor
……4NT Quant
……5-level Exclusion

..3S (4+S, not H)
……4H: Art S slam try
……4m: H+ minor
……4NT Quant
……5-level: Exclusion

NEW
..3NT (Shows Five Hearts, not 4 Spades)

..Super Accept with concentrated second suit (Re-Tfr Apply)
..3H : Accept (usually 3)
..3NT : (Super Reject (less than 3 Hearts))
……New Suit is Second Suit
……4NT is Quant (Texas then RKCB)

as above

..3NT happy (Responder can bid 4m, or 4M=shortage)
..4m sets m

..Always accept the TFR
..Can bid Step with no tenaces. but why
……4M+1: Kickback
……new suits are Exclusion

..STEP = Like
……(STEP is RE-TFR)
..5m = not like

……Responder can use 5m+1 to ask for Keycards