Breeding a pinstripe to a visual albino will give you all het albinos, some may be pinstripe and some may not. You will not get any visual albinos. If you are looking to get albino pins, the cheapest way would be to get an albino and a pinstripe het albino.

You are correct that it is a recessive (albino) and co-dominat (pinstripe) trait. To get a visual recessive trait both parents must carry that specific gene to pass on to their offspring.

There are a ton of websites an links to how the genetics work in ball pythons. I will admit it can be a bit confusing at first but just keep reading and asking questions. Also play with the genetic wizard to see what you can make, I waste too much time on there.