I have a 26T Sugino small ring that has never worked well with STI shifting on Shimano triple cranksets, both 42 and 39T middle rings. I recently read that Sugino rings have the teeth offset one way or the other that leads to slightly different spacing between small and middle rings and STI doesn't like it. Anyone know if this is correct and would Race Face or Salsa 26T work better? BTW, the Sugino works fine with the Shimano triple on a friction shifted bike.