Hi, I am new to mug printing and have done only 7 so far. Of all the 7 I have done the print is excellent on all 3 sides except the bottom where its faded. I realize by watching tons of YouTube videos and reading this forum that its because the base is thicker. Would this work, put a flat griddle on the hob on low and put the mugs on it to warm the base. Then press as usual. Thanks :-)