Transfer Walsh and continuations

Setup: 1C natural without 4D or 14-19 balanced.
1D/H transfers to major, accepting shows 3 card minimum or 14-16 bal.
1S rebid is unbalanced hand. 1NT rebid is 17-19 without 4 card support.
2C rebid is 6 cards unless 1435.
2M shows 4 card minimum.
2H is natural reverse.
2S is natural GF jumpshift.
2NT is some 15-17 6+ clubs without 3 card support.
3C 15-17 with 6+ clubs and 3 card support.
3M 15-17 with 4 card support and unbalanced but no 6+ clubs.
3D 15-17 splinter with 6+ clubs.
3oM 15-17 splinter with 6+ clubs
3NT is 7+ solid clubs and short major with sidesuit stoppers.
4C 12-15, (14)17 or (15)16
4D 12-15, (52)06
4M 12-15, (50)26

This leaves 2D as a multipurpose strong bid ala Gazzilli. It handles 17-19 balanced 4 card raise, (16)18+ unbalanced 4 card raises and 18+ club hands. I think it's well over 50% of the time the balanced hand and because often there is need to bid transfers for contract improvement, I'll make 2M rebid NF. So it's like 4-7 pts with just 4 cards that doesn't necessarily want to be in game opposite fit. With 17-18 balanced opener can pass. The first step (2H/2S) shows 8+ points and is GF. Opener's 2NT is the balanced raise, 3C is clubs without fit and others show strong hands in similar fashion as medium hands showed directly.
If responder holds a shapely hand, he can bid something else than the first step. 2NT is some 64, 3m is 55 and 3M is solid 6 cards or semisolid 7+ suit.

Other responses:
1S = 5-7 bal or diamonds (drop dead or inv+)
1NT = 8-10 bal
2C = GF relay that tends to show 5+ clubs (inverted minor) but could be just slammish balanced hand.
2D = Multi, WJS in either major or balanced invite (11-12)
2H = Reverse flannery, 5S, 4+H, 5-9
2S = Reverse flannery, 5S, 4H, 10-12
2NT = Minors, weak or GF
3C/D = Pre-emptive
3M = ? Club splinters are possible but maybe too rare and can be handled via 2C anyways. Maybe showing shortness and 4 cards in other major? Or 4M and 6+ clubs.
3NT = 13-14 bal

Over 1S (and 1NT):
1NT = 14-17 bal/semibal
2C = 5+
2D = Artificial strong, 18/15+
2M = 10-15, 56+
2NT = 18-19 bal
3C = 6+
3x = autosplinter
3NT = solid clubs, game try

1C - 1D - 1H:
1S = Natural 4 cards or GF "relay"
1NT = 5-8 bal
2C = 5+ clubs, NF
2D = 5+ diamonds, NF
2H = 5 hearts, NF but mildly invitational
2S = 5+ hearts, inv+
2NT = 9-11 bal
3C/D = 55+, inv
3H = Strong invitation, 6+H
3S+ = Autosplinter
3NT = 13-15 Bal

1C - 1D - 1H - 1S:
1NT = 14-16 bal without 4S
2C = 6+C, 3H
2D = 14-16 bal with 4S
2H = Good spade raise (4315/4306)
2S = Bad spade raise

Note: with 54+ majors and GF, you can start with canape transfer to hearts first. When the transfer is accepted, you get a cheap GF sequence after 1S and you can handle all other auctions well too except maybe for some problems after 2NT/3C rebid by opener.

1C - 1H - 1S:

1NT = 5-8 bal
2C = 5+ clubs, NF
2D = 5+ diamonds, NF
2H = Artificial GF, 5+S
2S =  5 spades, NF but mildly invitational  
2NT = 9-11 bal
3C/D = 55+, inv
3H = Strong invitation, 55+
3S = Strong invitation, 6+
3NT = 13-15 Bal