Help
I thought he and perhaps others too might like to see it, so here goes:
1S-2C shows either a balanced GF or an honest GF with clubs. Then:
2D = minimum but denies 4 cards in the other major.
...2H=ask, typically balanced. natural responses (2S showing 6).
...2S=artificial, honest GF with clubs, denies support.
...2NT=slam try in spades with honest clubs.
...3C = very good clubs.
...3D= at least 4-6 in diamonds and clubs.
...3H= at least 4-6 in hearts and clubs.
...3S= picture jump.
...3NT= 4333 choice of games.
...4S= sign off.
2H = catch all with extra values.
...2S = ask, often balanced. Then:
......2NT= any 6-4 (3C asks).
......3C,3D= exactly 5-4.
......3H= undefined for now.
......3S= 6-card major.
......3NT= balanced 17-19.
...2NT = slam try in spades with honest clubs.
etc.
2S = 5-4 in the majors, may or may not have extras.
... 2NT = ask, often balanced.
... 3C = very good clubs.
... 3D = at least 4-6.
... 3H = slam try in hearts with honest clubs.
... 3S = slam try in spades with honest clubs.
... 3NT = about 15-17 natural.
2NT = single suiter in spades, extras.
... 3C = 2+ spades, asks for shortness (no/l/m/h)
... 3D, 3H = at least 4-6.
... 3S = very good clubs.
3C, 3D, 3H = at least 5-5, extras.
3S = semi-solid spades, extras.