Press to remove moisture first.Often you're told to press the shirt to remove moisture before you transfer - how would you keep the center fold crease if you did this?
You can buy cheap lasers from eBay and make lines on the platen to help with alignment. Several people have done it, try searching heat press ebay laser.Thanks for all the comments here, but I'm still unsure as to the best way to align a breast pocket type image when using heat transfers. My customer complained that 8 of the 36 shirts I sent him where not centered right.
All you really need is a little practiceCome on guys, all you need is a cheap laser ruler, and a bit of logic