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@newbreed , mate I don't know the answer to your original question however I have thought about it a lot over the past few months.... Interestingly some certain ingredients are needed to unlock certain phenotypes... Take for instance King Kong Mosura , my logic to get that pattern tells me that a mosura type pattern needs to cross with King Kong . Perhaps the mishlings we wish to produce need to come from certain heritage to begin with. Since F1 generally are a scramble of the parentage only in F2 do you see the alleles combine giving phenotypes of the original parents. Certain traits are Y linked and certain traits are X linked. That's why some breeders recommend trying a cross a certain way. Take for instance crossing OEBT male x CRS female some say that this produces the best looking Tibee. Now if you reverse this cross using CRS male x OEBT female some say that that is the first step in the pinto recipe. Of course I may be wrong with this speculation but what I do know from my guppy / endler breeding program is there are a lot of traits passed on from males ie finnage and colour from females. My cross between japan blue double sword and ATFG blue grass high dorsal in F2 resulted in japan blue grass with size of double sword tail and none of the high dorsal traits being passed on as the X linked female clearly does not pass on those genes , just the colour traits. Knowing what works, which way can save a breeder a lot of time and effort. My results were confirmed by a breeder called Phillip Shaddock who spent a couple of years testing many crosses. What we are up against is dealing with a gene pool of a small population of CRS and CBS , mixed with SW , GW etc etc. Our hobby is maybe ten years old.... The guppy hobby is a century old where people have bred out the stray genes to a pure phenotype where you breed a blue grass to blue grass and you get say 98 percent pure blue grass every time. This is happening in our hobby too, with some concentrating on PRL and PBL etc etc and pure TB. I guess by using these pure strains can we decipher how genetic traits behave. I encourage people to follow the holy grail in creating a Pure strain that replicates itself time and time again, this can only lead to stronger competition amongst breeders and those that show off their stock, for me until I find what I am looking for , my shrimp need to be polymorphic until I stumble across that next "pinto"

Hahaha, I see what you did there!