[fromageGB]

I have been playing the multi for years and enjoyed it, finding it fun to play. But I found the inability to jump the response (usually partner has one major but not the other) troubling, and have had some bad mp results where the extra round of bidding given to the opponents gave them a better contract than others defending a standard weak 2.

We used the 2M open as a sub-minimum natural open, which gives the benefit of a 1M open being "full strength".

The variety of multi was 6 card weak 4 in a major or any GF

However, with one partnership I have abandoned the multi now, and play a normal weak 2M that may be 5 card (restrictions on that when vulnerable) and use 2D for an Ekren type weak 4+/4+ in the majors, with all strong (near GF or better) starting with 2C and a Kokish sort of continuation. I must admit I prefer this to the multi now. I like being able to raise partner's majors.

[whereagles]

If you play a weak-only multi, you might want to try it in 2♥ instead of 2♦. It puts a lot more pressure on the player on overcalling seat.

The 2♦/♠ openers can then be turned into something like

weak 2♦/minors
weak 2♦/weak 3m preempt
majors/minors
majors/weak 3m preempt
D+M 2-suiter/C+S 2-suiter

etc.. you name it.