I agree with Roger- if I was to buy this type of patching - highly unlikely as it is, it would be for the absolute most accurate shooting I could possibly do with that particular barrel. Teflon patching requires wiping the bore - I must have an allergy to doing that because I'm sure I could not wipe between shots and survive. Anyway- back to why a strip, rather than precuts.
With a strip, the ball is always perfectly centred in the patch, as long as it is always perfectly introduced into the muzzle, pefectly straight, in line with the bore's axis. A little stud on the short starter or a muzzle-fitting guide starter is necessary for this to happen. Pre-cuts are plenty accurate enough for trail walks, and hunting, but if loading for absolute accuracy, one must go the extra mile & cut on the muzzle.
Cloth weave orientation, mould lines in the ball, straight-line seating prior to cutting off the excess patch & method of seating the ball on the powder - all exactly the same - every single time - consistancy, though art a jewel.
Thus - if I was to buy the teflon patching it would be by the yard and I'd use it as a strip, cutting at the muzzle. imho