me and the shop did have a nightmare ,as she first had ultegra 11 speed on it with a 2014 rotor 3D+ chainset with aero rings ,but we had massive flex issues on the crank ,so long story short stripped her back down and re-built with dura ace ......
i did have to sell 3 other bikes ,save and ebay loads of stuff .....
At least thats a good way of making space in the garage for this nice bike.
Steve