Hello again everyone. I was all set to build an Annapolis Wherry with the drop-in rowing unit. But, I do have a wife and two teenagers, so I thought maybe a Mill Creek. I've seen lots of photos of people rowing the Mill Creek, but I've not seen anything about switching back to a kayak for paddling. Can these be built to do both paddling and rowing duties? I know the rowing unit requires mounting blocks and I have to wonder if those interfere with paddling seats.