My first batch of stickers was from Stickeryou and they came on their own sheet with a kiss cut around it so it was easy to remove from the backer. These don't have a split back, so you do have to work at it to remove it from the backer. These also have a layer over top of the sticker to make it more UV resistant.
I would have purchased from Stickeryou again, but they couldn't accept my artwork in PDF and when I converted to JPEG I got small jagged edges on the circle portions of the artwork and I just didn't like it. I was very impressed with Stickermule because I got a text an hour after I placed my order that the "proof" was ready for review. On my next order I might try their small sheets with a kiss cut around, for easier removal from the backer.
They will both send samples if requested.
Scott
