A couple weeks ago, I flipped the stem on my hybrid so it has a downward slope. I like the new more aero position that I have since I flipped it. But here's my problem. It dropped the bars about 2-3 inches. Because of this, the cable housing is too long and gets in the way of the front v brake, and rubs on middle of the head tube instead of the bottom of the headtube (like it was when the stem had an upward slope). I thought it was no big deal. But today, my cyclocomputer stopped working. I wondered why. I figured out that the constant rubbing action of the shift cable on the head tube frayed the cable from the sensor to the cyclocomputer's mount. I figured I would do the cable routing with zipties on the fork, but that's just a bandaid solution. I would like to shorten the cable housing to fix the issues. But that requires retensioning of the derailleurs (something I HATE doing). Should I just take it to the LBS and have them do it? How much do you guys think it would run me? I can also stand to get a longer stem if that will solve it for cheaper.