Wow. Got an instant reply from Ralf this morning - thanks Ralf.

The problem is that the small lettering doesn't always adhere strongly to the transparent transfer film. The solution is first to rub down on the transparent transfer film with a credit card to make the letters stick harder. Then slowly and carefully peel back the backing paper, turning it back on itself through 180deg.

If the letter still won't release from the backing paper, go back and do the same thing more slowly and pressing down on the 180deg fold, until it does.

Pic shows this in progress.

Gordon