The thing going on with clubs is that 1D can have longer clubs. Majors don't (Unless 56)
I don't have the suits in specific order as you can see because the main suit isn't know, however I tried to put two shorter suits in right order.
2C (Bal or clubs, GF) ->
2D = 4+C
2H->2S = H
2NT = Low, LL/longer clubs
2NT->3C= three suited
3D= LL
3H=1354
3S=1264
3NT=0364
3D->3H=1444
3S=0445
3NT=0454
3S=0445
3NT=0454
3D= LL
3H->3S=5512
3NT=5503
4C=6511
4D=6502
3NT=5503
4C=6511
4D=6502
3H=1354
3S=1264
3NT=0364
2NT = Low, LL/longer clubs
3C->3D = LL (5521)
3H = H (5530)
3S = 3145 (5611)
3NT= 2146 (5602)
4C = 3046 (5620)
3C = low, three suited
3D = no
3H = 3154
3S = 2164
3NT = 3064
3H = H (5530)
3S->3NT=1345
4C=1246
4D=0346
4C=1246
4D=0346
3S = 3145 (5611)
3NT= 2146 (5602)
4C = 3046 (5620)
3C = low, three suited
3D-> 3H = 4144
3S = 4045
3NT = 4054
3S = 4045
3NT = 4054
3D = no
3H = 3154
3S = 2164
3NT = 3064
2H = 4+D
2S->2NT = H
3C = LL, low
3D = No or threesuited
3H = 5431
3S = 6421
3NT = 6430
4C = 7411
4D = 7420
3C = LL, low
3D = No or threesuited
3H = 5431
3S = 6421
3NT = 6430
4C = 7411
4D = 7420
2S = 4+H, high shortness or no shortness
2NT -> 3C = LL
3D = 5422
3H = 5431
3S = 6421
3NT = 6430
4C = 7420
4D = 7411
3D-> 3H = 5512
3S = 5503
3NT = 6511
4C = 6502
3S = 5503
3NT = 6511
4C = 6502
3D = 5422
3H = 5431
3S = 6421
3NT = 6430
4C = 7420
4D = 7411
2NT = 4+H, low shortness
3C -> 3D = LL
3H = 5431
3S = 6421
3NT = 6430
4C = 7420
3H = 5431
3S = 6421
3NT = 6430
4C = 7420
3C = H/no
3D->3H = 6331
3S = 7321
3NT = no
4C = 7330
3S = 7321
3NT = no
4C = 7330
3D = M
3H->3S = 6331
3NT = 7321
4C = 7330
3NT = 7321
4C = 7330
3H = 6331
3S = 7(32)1
3NT = 7330
+++:
All but few wild shapes resolve at 3NT or below. (Except room problem with high shortness club canape

It is (relatively) very easy to remember
Fits for all three openings pretty nicely (Main exception is 3C as three-suited which is just one shape after majors)
---:
All single-suiters without shortness are lumped in the same. Especially 7th card can make quite a difference. Same goes for 71(32)
There's no min/max -> relay must be practically GF. (Over 1D inv+ with Ds is fine) Of course with min/max you can show only half the shapes in the same room. So it works well only for limited openings, the narrower the range, the better.
I just want some input, what obvious I have missed
