Hornady trickler - ended up mounting that trickler on a hockey puck for more base weight and height (rural Canadian - eh!!), and then ran a tap - maybe 1/4" or 5/16" NC (?) to create threads on inside of the pipe, like I recall that the RCBS one had. It now lets me dribble out one kernel at a time, like that old RCBS one would.
That's interesting.. I've done same kind of thing, added a "puck" of 3/4 plywood and aluminum to the bottom of my Hornady trickler for height and weight.
I didn't realize the RCBS trickler had a threaded spout, though.




















































