Sorry mate but we haven't. Our 750 is a non abs model. Can't imagine it being that hard though to be honest. Just need to see what is involved in bleeding the system afterwards. Though doubt it will be anywhere near as difficult as the Honda system
Give Crescents a call 01202 512923 there pretty helpful and will point you in the right direction, if it's the same kind of system as the new ZX10 it's a little bit of a ball ache getting to the connector blocks to connect the lines as most of them run down the inside of the frame and are well buried ! I helped with one a few weeks ago but the engine was out so it wasn't that bad. Might be worth a call... Good luck