im assuming you mean meucci......i happen to have a red dot meucci shaft with a black collar, it has a slight wobble in it but not noticeable. Its probably about 13mm so you could get it turned down to 12 and probably lost the wobble too. Let me know if your interested, i could post up pics. The shaft hasnt seen much play, i bought it to go on another stick i had then i ended up sellin the stick.