When I used the USPS to print shipping lables, they are just a bit cheaper than if I purchase the postage at my local post office. On top of that savings, when I use my Paypal debit card, as a credit card, I get a 1.5% discount as well.

Okay, when I use the Paypal Shipping do I get the same discount on the postage?
Is the money that is taken out of my account processed as a paypal payment or paypal debit card payment? Is there a way I can get the 1.5% for using my paypal debit card?