Doing a quick look at US sail loft franchises, would you say these are the top 5?
North
Quantum
Ullman
Doyle
UK
So buying from any one of these I would imagine there is a good chance of getting good quality cloth, workmanship, etc for a reasonable price. Plus they have a reputation to uphold.
As far as cloth goes each seems to have their own names for similar Dacron variants. The same probably goes for the spectra type sails.
Would you choose one loft over another for any specific reason?