I love to play a Multi 2♦ and a Muiderberg 2M, however since Multi has been banned and my partners don't like my 5332 openings, I implemented Muiderberg... We now also open any 9+ HCP with a six card suit. Also, with less and a good suit, the 3 level is still always available. Muiderberg seems to go well with Multi, however it can stand alone. I am extremely dissapointed that Muiderberg is defined as a Mid-Chart convention, it is extremely simple, and all weak 2 treatments still apply. It should make no difference that it has an agreement of showing only 5 and an outside suit! I would love to be able to play Muiderberg in a side game or at the club, but unfortunately I will not be able to do so for a long time.