UPDATE
Re-ran the Corn Flake wash today. Got the bubbler up to full reflux using both elements then unplugged the top one. Adjusted the RC to slowly drip off the fores, then again to dial it in at a much slower 1.8L/hour flow rate. That seemed to do the trick as it held a steady 88% abv right through the hearts.
Thanks again for the input and advice everyone! :dance: