Originally Posted by
Bingod
I used a 12-36 with the long cage 3500 RD with the B screw all the way in, it was right at the limit though. I swapped to an XT M592 SGS, which with hours of adjusting, a new cable and a new hanger works well but is only slightly better. From all the feedback I received here the Deore M591 would have been the better choice.
I think you experienced the same issue I had with Deore M591, M592 and M772 and Sora 3500 shifters. The dérailleur would shift up, but would skip a cog shifting down. I spent a lot of time working on this, including having a shop try and another home mechanic, but we couldn't get it perfect. I gave up and used the mid cage Sora 3500. Ironically, a 90's Deore LX M560 also worked nicely with Sora 3500 shifters.
Here is my limit screw with a Sora 3500 and 34T
