Actually I think this is a great first pairing! Especially since your male is the pied. You can keep all the female hets and breed them back to the male, then you'll end up with a bunch of pieds and you can ditch all the hets at that point. I'm actually at a point where I'm looking to stop buying snakes for my breeding projects and just make my own with what I have. I'm also breeding my very first pair this year, actually my female is full of eggs and she just shed today, I'm counting down the days until she lays, should be 30 days! Then another 60 before they hatch.
Also you may have a Kinpin that's het for pied already and not even know it, that's what I'm hoping for as well. You will get 100% hets, then 50% hets, then possible hets, then as people breed the possibilities are not even mentioned although they may still be there...
Here's the odds for your first pairing:
Percent Fraction Genes 25 % 1/4 Het Piebald 25 % 1/4 Pinstripe (pin) Het Piebald 25 % 1/4 Lesser (Lesser Platinum) Het Piebald 25 % 1/4 Kingpin (Lesser Pinstripe) Het Piebald
And if you breed back a Kinpin het pied you'll get these odds, it's actually pretty good. You'll get Pieds, Pinstripe Pieds, Lesser Pieds, and Kinpin Pieds (50% will be pieds). From what I've seen no one has ever produced a Kinpin Pied, it may be the worlds first!
12.5 % 1/8 Het Piebald 12.5 % 1/8 Piebald (pied) 12.5 % 1/8 Pinstripe (pin) Het Piebald 12.5 % 1/8 Lesser (Lesser Platinum) Het Piebald 12.5 % 1/8 Pied Pin (Pin Pied, Pinstripe Pied) 12.5 % 1/8 Lesser Pied 12.5 % 1/8 Kingpin (Lesser Pinstripe) Het Piebald 12.5 % 1/8 Lesser (Lesser Platinum) Piebald (pied) Pinstripe (pin)