Using a pot still your hearts will not be the most potent portion of the run. Definitely the best part, though.
Highest proof will be with the heads and will continue to decrease, not linearly, to the tails.
I started with a pot still. You might want to take a second look at column stills.
As far as flavour, using a pot still is best. But there is an art to it.
It completely depends on the quality of your mash.
Also to get any corn flavour or sweetness through to the product, means you need to stop the ferment before all the sugars are converted.
I found this was inefficient, considerably more expensive, and quite messy.
Get distiller's high alcohol yeast for the ferment. Forget using big sacks of corn or grains, and think big bags of sugar instead.
I got most of my gear and supplies from Mile High Distilling. They make top quality stainless steel gear.
You put copper mesh in your column to remove the sulphides, and little ceramic spacer type things for the refluxing.
If you don't cool the top of your column you still get a partial pot still effect. I usually didn't cool the top of the tower.
The final product is much cleaner with at least a partial reflux in the tower. Definitely less headache and stomach irritating things come through.
If you want a whiskey/bourbon flavour you buy a bag of old whiskey barrel shavings. You take your hearts and pour some shavings in and let it sit for a couple of weeks.
It pulls the brown colour, tannins, flavours/smells etc. from the wood.
My hearts runs without cooling the tower usually end up at 55% or 110 proof.
Soaked in shavings for a few weeks, it smells and looks a lot like JD.
I've had a number of people taste test mine vs. JD. They all say it is very similar.
Now the funny part. They almost all say the JD is stronger! This makes me laugh.
Mine is much smoother, so smooth that people actually think JD (20-30 proof less) is stronger.
JD is rougher because they use much more of the run than I do. It's a business for them and a pursuit of excellence for me.
Mine will also treat you much better the next day if you happen to overindulge. No headaches, and your stomach will usually recover by mid afternoon.
Mile High has a good web site and large assortment of quality products for sale at very reasonable prices, IMO.
I have always been pleased with their products and shipping, even half way around the world to S. Korea.
Oh, and mine at 55% will burn, JD won't. It needs to be >= 50% to burn.
Pour a little in a spoon and put a lighter to it.
In the sunshine the clear blue flame is imperceptible, but the heat generated isn't.
At night in the dark it is easy to see. If the flame has any yellow or orange in it, you have impurities in it.
Run it through the carbon filter until you have a clear blue flame.
It also took about 24hrs to do an 8 gallon run with my 750W electric hot plate heater.
Slow and steady heat is best, and you do not want to use any open flame heater just in case you get a vapour leak.