I'm fighting against the current and cobbling my 1X Shimano setup together. 6700 lever mated to a 6700-GS mid-cage derailleur + RoadLink would be perfect for up to a 36T, but has it's share of issues with a 40T. I don't blame the RD or the RoadLink-- it stills works, and the chain will stay in the 40T under power, but will tumble down to about the 28T if I backpedal about 1/2 of a crank revolution. The RD simply doesn't have enough spring to manage the chain. It's super loosey-goosey in the 11T, and the B-screw has to be cranked down all the way to keep the chain on the 11T cog. 42-11 is just super loose with a derailleur in the mix.

I have a Tanpan on the way, which will hopefully enable me to mount the lightly-used XT I have sitting on the workbench. If all goes well, it should be a very nice setup. I don't miss my FD at all, even with the current little shifting issues-- and I never really had any major problems with 2x10. It really is just one less thing to worry about. That, and my 10M shop roll of Jagwire shift housing is gonna last forever.