Still is producing a very small amount of hearts

[Deuce67]

Mile High 3" combo tower limited packing, I also have a 5500 watt heater with a keg as my boiler on a controler. I have run 3 runs of ujsm I seem to be getting more heads then hearts, I start at around 186 proof it will produce 1000 ml of product, it drops to 184-172 for another 1000ml of product. After that the bottom falls out on my run and I get 200 ml at 150 proof and 100 ml at 110 to 100 then I'm done. also my proof drops pretty fast after 140 proof on my cuts, another problem is run times, it takes like 10 hrs to do a run.

Thanks for any input