So after 10+ years with BMI (around 1,500,000 miles in the process, 500,000 left!) it looks like it's time for a move.

I have to fly with Swiss weekly. As of next week (according to the briefing) I will no longer have my *A miles added to my BMI account.

Only Swiss do the route I require (to Zurich, funnily enough) ... so looking for another carrier isn't an option. So question is - do I now enroll with M&M or is there another option?