Filtering is one of those things where experience will lessen the need.
No matter what type of still you have, the purity of the drinkable spirit is dictated by how the still is run and where the cuts are made.
Running fast will result in smearing of the different elements into each other and effective filtering will be absolutely necessary.
Cuts that don't accurately separate the heads & tails from the Heart, in the way you intend, may also require/benefit effective filtration.
We all strive to achieve better and cleaner results from our stills and I suppose it's fair to label us all as Distilling Practitioners trying to fine tune our art.
For what it's worth, I've learned that striping a
clean wash in a pot still, then slow running the low wines through a column followed by careful cuts will produce finished spirits that do not require filtering.
However, a word of caution!

the human palate is all too capable of getting used to just about anything, even poorly cut spirits like commercial alcohol products.
I'm putting together a rough guide to cuts (
pun intended ) - and I stress the term "
rough" It will be basic but may provide a starting point and, perhaps, some guidance to beginners who find the whole "Cuts" subject a little daunting, highly subjective and quite baffling
I'll post it in a separate thread under the Distillation heading.
AM
