All animals are equal, but some animals are more equal than others.

https://blakjak.org/brx_brn0.htm
https://www.gambler.ru/Bridge-frnat
https://www.gambler.ru/Bridge_convention

__everywhere__:
2D multi no (64)xx
2M 55
031422q, no fit = last nat suit, dopi-ropi
1M-2NT 4+ 10+p
1NT-2S/2NT-3C 17p
1NT-(DBL)-? NAT
UNT + Michaels
mosk

__nat__:
1C 3+
inverted minors
2C FG -2NT no 3 controls, 8+p
2D-2M-2NT 22-24p
multi-landy
new minor forcing

__WJ multi__:
1C-1D-2C FG - 2D 0-3p
1C-1M-2C-? 4455
1D 4+ unbalanced
DONT
gadget
drury