I have recently changed my 680mm bars on my hardtail to Mary bars which are roughly the same width but clearly have a totally different angle that you hold the grip at. Wasn't sold at first but now I have ridden with them for 10 days or so I really like them. I find them so much more comfortable as there is no strain on my thumbs or wrist.
Rode the full susser today for the first time since putting the Mary bars on the other bike and I can really feel the strain in my thumbs. It has a 745mm wide, slight back sweep handle bar. I really like the width but as you might have now guessed I feel like the angle of the grip is too straight.
I'm looking for a bar that is shaped more like the Mary bar but wider. Doesn't have to be quite as angled backwards but something in that region, also I'm not bothered if its a bit shorter than the 745mm but probably nothing shorter than 710-720mm. I have had a quick look around at touring bars but not found anything wider, in fact they all seem considerably more narrow. Also hoping for a 31.8mm clamp.
EDIT: Maybe something like the Fleegle, but wider.