I dont like my ultegra bar end shifters on my trek x01. i get the point that on a cyclocross bike it makes sence. they work perfect and i like that you can modulate the front shifter to move the derailer a bit to avoid chain cross... but.. every once in a while i bump a knee on them and obviously there is no shifting without taking my hands off the bar. i ride in the hoods most of the time so i am thinking of geting a set of ebay sora sti shifters. is this worth doing or should i look for tiagra or better? Im not in a hurry to change the rest of the sora components as they shift perfectly smooth and weight is not a consern. (bike weighs right at 20lbs and for a BIG guy this is no issue). any recomendations. im 8speed with a triple right now.