I have a really dumb question. I have an outside cabin booked on Mercury about 1/4 of the way back from the bow. I have read in posts that the bow cabins have more motion, but is that only if you are right up front? I am scared to get one in the aft area due to posts about vibration, and cannot seem to locate a midship cabin. Anyway, what I am really asking is will a cabing 1/4 the way back be terrible as compared to a vibrating aft cabin.