Ok one part has been explained but there was one part of it left out that would be the 0.0.1 which would be unsexed.
To the inbreeding. I have 2 different points of view on this. First if it is say mother to son or father to daughter then I am more ok with it but if it is sib to sib, brother to sister, then it is less ok. But I do see the point of doing it. As with myswelf I have 1.1 het pieds that are siblings that when they are mature I am going to breed together to make a pied but after that I will be out crossing to make a stronger line for myself. I will be doing the same with my Het. Red when I breed her in a few years to my pastel. Her son will be bred back to her, if I get a pastel het. red male, to attempt to get pastel red axanthics. But again I will be out crossing after that.
As with anything there is always 2 sides to the coin. There is the chance that there will be negative effects on the offspring but that is not overly common from my experience.
Now to address something else you said. If you were to breed a het, lets use albino for this, so you have a het albino male and a normal female. They will both look normal, Het just means that it carries the gene for albino but does not show it. So you have this het albino male and a normal female and you breed them together. You get eggs lets say you get 6 eggs. According to the math you should get 3 normals and 3 het albinos but there is no way to tell them apart because theu all look normal. Also you could get all normals and all het albinos. But on average you should get a 50/50 split so you would then ahve what is called 50% possible het albinos. Now lets go a little further and lets say you get 3 females... So you would hold them back, grow them up, and breed them to daddy... Of those 3 females lets say one was an actual het albino. Out of the eggs produced by that one female you would have a 25% change of getting an albino. So lets say you get 4 eggs just for easy math. So you get one albino that leaves 3 normal looking babies. Of those babies 2 out of the 3 should be het for albino so they would be called 66% het albino because as you can see 2 out of 3 is 2/3 which is 66%...... But again they will look normal so no way to tell for sure which ones are het for albino.... Now that I have hurt your brain more than you ever wanted I will drop this because I do not want to get into the more complex areas of breeding.... But if you want to go to ralphdavisreptiles.com and go to the matrix area and read all about the breeding and possible results and all of that there he lays it out extremely well. I hope I didn't scare you off.
Lastly welcome to the forum and to Ball Pythons they are a great addiction.