A few weeks ago my Force left shifter broke. This morning the right shifter broke - both involved non-serviceable internal bits (not the paddle) and were shears in the metal. I've used them for 4 seasons, none huge mileage years. Curious what sort of service life others are getting and what's reasonable. I like SRAM functionality, but I still have some old 9 speed Shimano parts lying around so makes me wonder about long-term durability comparisons.