Part of the deck refurbish on the mighty Icon was to improve the drainage finish on the raised deck cap toerails. Although she doesn't take much over the bow my main problem is chafe on the fibreglass as I run springer lines through rather than over the top of the teak/jarrah capping.
I managed to purchase 6 scuppers and found a China man engineer to machine out the bottom section so I didn't need to recease the part into the deck cap. After a bit of reshaping I managed to get one out of the 6 fastened and faired tonight. Should like smick once complete and less wear when mooring.
Gotta love boats.