As far as the mutations go, because the chromosomes of a blood python are different than those of a ball python, it is extremely unlikely the alleles would fall on the same locus. You theoretically would end up with all being heterozygous albino from the blood python, half of which would theoretically be spider blood balls, and all would be 50% chance het albino from the ball python (you'd basically have some double heterozygous blood python albino and ball python albino). However, I am not an expert on hybrid genetics, so there could be a possibility the spider mutation may not be dominant to the blood ball hybrid phenotype. I'm not even sure if any studies have been done on how genetic mutations from one species pass on if it is hybridized with another species though, and there is likely to be a lot more variance in the hybrid than with mutations of one of the species or the other by themselves.