I have used XTR cables on 3x9 X0 without issue but on 10 speed I have always used Jagwire or SRAM. About to build up an 11 speed SRAM setup and got Jagwires for that.
Still stuck a couple of times today so looks like I'll need to try new cable. 1.1 seems thin on the ground and I guess I'll need outers too. Any idea where I can find it, I've only come across some on eBay.