The iboats forum moderators are excited to announce that at this time it appears the iboats forums posting pictures function is working once again. Though we cannot promise for how long, we're hoping for indefinitely.
Yep, the longer the curing time the better. I have had good luck using a piece of cardboard curved into the shape of a cylinder. I set it against the glass and fill with epoxy (this creates a nice thick "bed"). After a few minutes when the epoxy starts to thicken I press the transducer down into the epoxy.