Hi Michael Welcome to the YOC, WEMOTO are supposed to be very good and reasonably priced so give them a try. As to your other question, first check that your cable is not kinked around anything where it travels from the lever to the actuator arm, just make sure it has a clean run without to many changes of direction, you could try lubing the cable before you fit it with a cable oiler, my own preference is to use bluetack made into a funnel at one end then hang the cable from a handy rafter or whatever and then fill the funnel with oil till it drips out of the other end, takes about 10 minutes for it to go through and have never had a cable break on me yet (you just know whats going to happen now!!) Hope that helps?