Shimano ST-9070 Dura Ace Di2 Shifters
State of the art Di2 electronic technology for instant, accurate shifts first time, every time, at the push of a button. Now 11-speed compatible, with enhanced feedback and improved ergonomics for easier access to the shift buttons from the top of the the hoods. Cleaner wiring thanks to single-wire E-tube connections, that also make it easy to add satellite shifters for bar tops or in the drops.
For old guys with arthritic fingers, Di2 shifting is a godsend. I've used these with full finger gloves without a problem. The adjustable reach works nicely too. No complaints at all.