If you don't know where to make your cuts, your gonna miss the prime or let it smear into the heads and tails...and for gods sake if you do, use good copper and stainless only, and throw away the first 100ml, it is poison and will blind you.
It takes some skill to just get the prime cut keef, it took me many years with my granddaddy on my *** till I got it down. I make shine, damn good shine......so did my daddy and his daddy and his daddy. When I run a batch its in a 50 gal kettle with a thumper before the worm, it sorta double distills it, so coming off the worm I'm hot.... usually 165 proof or right close. Then you also have to know just how to temper down your shine so that it can be enjoyed. I usually temper down to 110 proof, that will knock you on your *** quickly.