Dry Fly's "Process" page, by the way, has the hallmarks of a distiller that actually distills their product; they're way too specific and making way too many falsifiable claims for it to be rational for them to lie. They even call out the process of augmenting a distiller's own make with NDP product.
That's respectable! It's neat that companies like these exist and I'm happy they do.
But that doesn't make their products better than Four Roses or Woodford Reserve. They almost certainly aren't. The major whiskey distilleries have huge advantages accruing to quality that small distillers don't.
Even simple stuff like volume works in their favor. Sazerac did an experiment where they the same product in 5, 10, 15, and the standard 53 gallon barrels. Indie distillers use smaller barrels both because it suits their production needs and because it "accelerates" aging, ostensibly due to the different surface area to volume ratio. The smaller barrels produce off flavors (presumably, they're extracting more and different chemicals from the wood in the same aging time).
You can do a bunch of things to counteract this, just like you can do a bunch of things to mitigate the fact that new distillers by necessity have to sell young whiskey (and probably will long after their first barrels hit a reasonably full maturation, because they're learning as they go, and each learning cycle costs them another several years!). But all those things impact quality and flavor and consistency.
Dry Fly's going to charge you between 35 and 75 dollars for a bottle of whiskey. Not only is Dry Fly not the best whiskey you can buy for $35, but there are better whiskies at that price point in big city supermarkets. At $75, Dry Fly is competing with Buffalo Antiques (at least their list prices). Come on.