Mounting Stanchions

[coopec43]

I would be very interested to get the opinion of people who have "been there, done that" on how I should mount the stanchions on deck.

I am reluctant to mount the base of the stanchion directly on to the deck as I know it will mean I have deck leaks (even if I use butyl tape) I have therefore made up polyester fiberglass "mounts" to raise the base of the stanchion slightly above the deck.

I thought I'd sand the deck where the stanchion is to be mounted and then use polyester bog to "glue" the mount to the deck. Then I'd mount the stanchion using butyl tape. Has anyone got a better idea?

I have taken a photo with my camera, emailed the photo to my desktop and then cropped it (first time I've done that!) (The mount is tapered on this stanchion to make up for the curve of the deck)