I had the same question
Brian,I submitted the same question about eight months ago. Heard the many similar responses. Everyone made good points. However, your situation is unique and requires a customized solution that fits a Great Lakes sailor. I say this because no one knows what the water level will be from month to month, let alone year to year. (The Geological survey people are still learning the art of predicting Great lakes water levels). If you're worried about occasionally being stuck at the dock, you need to own a shorter keel, regardless of what it's attached to. If you're concerned with running aground while sailing or motoring, then you may want to simply restrict your route to well known known deep water. Shaving 10 or 12 inches off of your keel didn't seem worth it to me. Based on all the advice I received here, I concluded that it would be too detrimental to the boats re-sale. So, if your not trapped at the dock, just be very carefull. If you can't get out of the marina 100% of the time, I would recommend trading boats for for a shorter keel.