Helping my buddy transfer all his parts to a new Nomad frame. He has some XO twist shifters and we are trying to replace the cable. We have the old cable out of the rear shifter and it is in position "9". We can get the cable in the hole but when it gets to the 90 degree bend where it turns to go out the adjuster barrel, it snags up. We have tried numerous times to no avail. Help!