I have same issue to this thread which is why I am looking at presto pot method with stirrer to improve productivity. See my recent post for which the guys/gals on the forum are helping to identify which stirrer motor will work.
I also have issues with wasted time between shoots reheating and overall I also found the baits are different colors toward the last pour (tried heat stabilizer, heating slow and constant stirring, pouring at same temps etc etc)