Phew, well, you are taking your life in your hands making decisions like that! If you have already glued them in place then that is the decision made! If not, then sleep on it for a bit and feel your waters to divine wether you should or not. You have spent long enough in the trade to know which is the better way to get from one deck to another:O)
Thanks for the information about your radar drive unit Joe. I like the idea of using a rubber ring as you have reduced the damage potential to your radar array if it gets caught on something, then hopefully the drive will slip. If you had used cog to cog, it would have wound itsself free destroying your gorgeous brasswork.