My rating of the whole process at the 4 places I redeemed is as follows
Aspen (Snowmass) = Great Show the voucher via whatever means you decide, get ticket and done.
Alta = OK Ticket window but last year they had to login to a separate data base so took a couple minutes.
Jackson = Low end of OK or upper end of not good as you had to go to separate computer in the pass office to digitaly sign some sort of waiver then return to the counter for your pass.
Snowbird = Sucked Took a huddle of 4 people and 15 minutes for them to figure it out (season before last).
Interesting - I have always just followed what was on the printout and brought paper - always opt for the season pass office if possible -never have had an issue. Alta, Jackson and Snowbird- never any drama. Aspen was the best though any ticket window.