Hey all. Just wondering before I blow $70.00 if a one degree difference in stem length can be felt by the average rider? I dropped from a 100mm w 6 degree rise stem (low back issues) to a 90mm w 5 degree which I had in the garage. Now my back issues are gone, but now the base of my neck is getting all jacked up after my rides. So, I am wondering if staying at 90 but going back to a 6 degree rise will solve this or would I just be wasting cash? Help??? Thanks.