Just wanted to say hello and that I'm a newbie to the forum. I have been sublimating items for over a year now and i decided to purchase a 20 Oz tumbler heat press (Craft Express). I'm struggling to find my sweet spot on time and temps. I have tried medium pressure and light pressure. Temp ranges from 365 - 356, and times from 75 seconds to 60 seconds while rotating the tumbler to get a full press. I get good color saturation (Hippo paper) but I'm getting tape transfer marks and strange imprints on the mugs. I also cover the tumblers with butcher paper before i press them. Every time I press a tumbler I feel like I'm burning up a ten dollar bill. Tumblers were bought through a local craft store so i don't know the brand name. I have included some pics for your viewing pleasure. Any suggestions, tips or hints that will bring me to that sweet spot will be greatly appreciated. Thanks in advance!