Hi all. Let me try to explain this. My RD shifts promptly from the smallest cog on up to the larger ones, but sometimes it seems to shift just a tad too far and the chain rattles; when this happens, I can hit the smaller lever (on my Shimano brifter) as if I am shifting back down to a smaller cog, the RD will move a bit and the rattling will stop (but I am still in the same gear). I have tried fiddling with the barrel adjuster, but to no avail.
Any advice on the appropriate adjustment? Or do I just need a lighter touch with the brifter lever to shift just one cog at a time? Thanks in advance.
PS: with a barrel adjuster, which direction is clockwise and which is counterclockwise? Do I judge this while looking at the adjuster from the front of the bike or looking from the back of the bike?