I recently purchase 20 sheets of PnP paper from Rings and Things for a Metal Arts class and every attempt to achieve a transfer to copper has failed. A Laser printer was used to transfer the images, the copper was prepped as instructed and heat was applied from between 275 and 350 degrees. After seven attempts to make a transfer the teacher suggested trying her batch of PnP paper (purchased from ******). Using the same Laser Printer and prep a perfect transfer was achieved 3 times. The only variable was the paper. Rings and Things was the 'on sale' PnP paper you sold recently old stock. Please advise. [R&T Reply: Hi D., We go through our stock pretty quickly, so we don't think it was old, but we will contact the manufacturer and find out if there have been any problems recently. Sometimes it's a little tricky to use, but your experience sounds like you tested the variables well, and it came down to the 2 batches of paper.