I just bought the 19' Angler "Lucky 7's" and decided to give her a little shakedown cruise in Shuswap lake. Being a little new to this and never having used trim tabs. So off we go tabs full bow down. Thinking this might be a little much decided to ease them back a touch. Following the salesman's instructions I held them in for a 3 count and let them off. We were doing about 30kph and all hades broke loose. It seems the portside rocker switch sticks and that tab was full bow up and the other almost full bow down. I'm now waiting for a new switch. Any advise for the proper use of these?