My questions are as follows:
Since the kit has both fixed and plunge bases would there be any advantage in permanently mounting the fixed base to the table top without using a removable insert. I would assume this would simplify the construction and better eliminate the possibility of the top flexing.
Is there any disadvantage in removing the router motor from the fixed base to change the bit as opposed to removing the whole unit still attached to a removable insert?
Is there any case where it would be a significant advantage to use the fixed base rather than the plunge base for freehand, out of the table use?