Should I change temps to maintain flow rate

[Neelin01]

I have a t500 reflux still and I am just starting to be able to drive it properly. The burner is one temp it has no temperature control past on or off. The temp of the condenser is regulated by water flow. Water flows through a condenser in the stack and causes reflux which gives me the good stuff. I find myself raising the temp a few hours in to keep the distillate flowing at the same rate. So I start at 55-56 and then end up adjusting it over about an 8 hour period to up to around 60 celsius
I have had some pretty great batches so far. And a few terrible ones also. I am having a lot of success making a great neutral with the all bran recipe. I am curious if anyone could tell me if Im hurting quality by chasing the flow rate of the good stuff by raising the temp in the stack? If I didnt do that it would take double the time to do a run. Or I would get a lot less product haha.
Im not the best at tasting cuts yet so Ive been keeping the middle 50% as hearts and the first and last 25% go into my next run.