Finally my X7s turned up after a paypal claim was opened!Great info, thanks @slapo
The B150 (and B200) and the Final E2000 were on my shortlist. In the end I've taken a gamble on the Massdrop EDC.
I also bagged a pair of Mee Audio X7's for the gym running. I hope they fit!
Go to say they are a nice set 0f phones! Sounds wise, not as good as my Shures were (with the cheapo chinese bluetooth cable), but they feel well made and they actually fit my ears nicely. I'll give them a whirl at the gym/running as soon as poss.