Usually, when working with three molds I can release the first mold after the third mold has been poured. I use an infrared light above the mold after pouring so I do not need to top off the bottom. I put the mold with candle in the freezer as soon as I can handle the mold without the risk of spilling. .When the mold comes out the freezer the inside of the candle is still liquid.One has has to carefull to release the candle so as to not spill the liquid wax. With a rotating table one could work a dozen molds and obvious this would speed up the process. The infrared light is essential in order to speed up the process. With the rotating table the molds pass automatically under the heat source. I have however never timed this operation.
Janvanhamont