I got my first batch from sigzworld and have had a huge issue with white spots at first I thought maybe the press wasn't transferring the ink but I am now starting to think it tis the coating from the mugs coming off onto the papers. I am 32 mugs in and these white dots are ruining 90% of the prints I have tried various heats and times yet it still seems to happen.
Basically I need another box of mugs but don't want to waste my money if it's the mugs and their support has been next to useless.
So, I would really like to know who people get theirs from.