Found a nice Trek 7.3, best riding position I ever had. Only I hate exterior cabling on it, always gets hung up on my bike rack and on bike stand. Seems like pretty simple procedure, just need a ton of tubing and a few plastic grommets. Plan is to have one cable on one side and two cable on the other or should I pull them from the top where the cable guides used to be once I cut them off? Any issues or this is a dumb idea?