There is no reason to believe that a beast has to come with beauty
99% of python regius or ball python morphs have no neuro and I have never heard of any neuro problems with retics or burmese morphs
The Neuro problems with Jags didnt seem to appear until long after Jan Engels first bred them
First reports of neuro came about 2 years after Iryan Jayas were introduced into the Jag line by the Germans Dutch and Yanks
Jan has always stated that none of his original Jags ever showed neuro problems and so far I have never found any evidence to doubt this
How does that explain neuro conditions in pure coastal jaguars? Are you saying that it is a highly virulent virus that came from IJ's and locked onto the jaguar gene in all carpet pythons?
Jan Engels was a fibber.
Also there are more than 1% of royal python morphs that incorporate the spider gene which is similar to the jaguar gene in its patterning and its neuro side effects.