Hi Melanie,
I did not. Currently I am printing on a 10×15 C&P and don’t have plans at this point to print on a Heidelberg.
Do you have a Heidelberg that you don’t know how to use? Or were you hoping to learn first and then purchase your machine?
You may want to contact either Pratt or SVC and see if they can point you in the direction of a teacher.
Adina