Fair enough, I have pretty narrow flats. Big MTB bars are horrific on my shoulders, for sure.maybe its just my shoulder and the width of flat bars thats the issue for me ,
A couple of t-shirts here. on both sides, even before the new RH joint, so know what you mean. Not pleasant at all...Mines AC joint arthritis probably, couple pd with the 2 surgeries a few years ago, which means everything gets grumpy!