Thanks guys I did end up looking through some other threads but the consensus seems to be that no one has proven the lines compatible. I don't really understand it...because on world of ball python morphs they just have axanthic listed (axanthic spider, axanthic pinstripe, etc) and if the morph itself takes out color so it makes other morphs black and white I don't see how they wouldn't be compatible to eachother....? maybe that part of genetics is just over my head.

But I'm glad I asked because I bought a female VPI line axanthic (very nice girl) and then there was a TSK male for sale locally and I was going to buy him to breed with her. But heck I woulda been ticked to get all normals that are 50% double hets!