With the main float getting its second coat of resin, it was dry sanded to an eggshell finish w/ 320 sandpaper and is ready for priming once it gets warm enough outside to do so. A water rudder control horn was fashioned out of 1/16th circuit board material and a corresponding slot was cut into the rudder from the trailing edge forward. The horn was cemented in place and a strip of 1/16th balsa fill glued in behind it and sanded flush. At this time, it was glassed & resined and fitted in place with a threaded inner brass tube that slides into an outer tube that's glued inside the rudder post hole. With a "Z" bend screwed into the Sullivan control cable, everything fit cleanly for a very smooth, easy side-to-side pivot. On to the tip floats.