Hello GW,
saw your post and thought I would let you know about a little trick we used with the teflon sheets.
Rather than move the flat sheet around to each location you are trying to iron, we made a sock configuration to attach the sheet to the iron.
Made it very easy to iron where you needed to without the hazzle of moving the teflon sheet along the tape etc.
Hope the pic shows enough detail to visualize what we did.
The sheet would wear out gradually so we would just replace it with a new one and be on our way again. Did 14 planes this way.