think of it as 4 eggs/clutch..that helps me out
http://www.ballpythons.ca/what_get/recessive.html also helps me out a ton
The numbers you are saying, i've never heard of...all i know of is 100%, 66%, 50%, 25%
If you've got 2 possible hets, that means each one came from a clutch where some were normals and some are hets.
If i give you 2 snakes that look normal, but one carries a morph gene, then you have a 50/50 chance (or 50%) chance of choosing the right het.
You don't acctually add/multiply/divide the numbers to figure out what your odds are.