Pop the outers out of the stops and move them along the cable, if one of the pieces feels rough then it likely wasn't cut too well, pull the ferrules off said piece and trim the ends to avoid any squished bits of casing hitting the cable, an awl or similar to open the ends can help. If it's not that check the levers move freely.
Pop the outers out of the stops and move them along the cable, if one of the pieces feels rough then it likely wasn't cut too well, pull the ferrules off said piece and trim the ends to avoid any squished bits of casing hitting the cable, an awl or similar to open the ends can help. If it's not that check the levers move freely.