You must remember that the b5m has only been out for a few weeks now, and there really hasnt been much time to figure out setups that work extremely well. I personally do not own a b5m as we are switching to outdoor season, but of the ones I have driven they are very well sorted and have some great corner speed.

A guy here has a serpent mm as well and does well with it, but I have only driven the rm so I cannot really compare the mid versions.