If I remember correctly, most red texas were Texas x any "red" cichlids with fader genes such as RedDevil, Midas and Parrots (King Kong, Blood, Rose Queen, Mammon etc).
One could argue that they made a RT using Carpintis X Vieja Synspillum.. then crossing the offspring of that with a female Blood Parrot... People can choose to work on the head/body shape before working on the color.. You listed a few methods.. and those work on the color. If one could obtain a Carpintis with a Kok, many would want to skip the using of Viejas.. but I find the body shapes to be awkward.
Many ppl call orange hybrids "Red Texas".. If orange can count as red Texas.. why can't my old fish be considered a SRT.. It had the rich red that most "Red Texas" NEVER get. I think the grouping of orange/non faded Texas hybrids into a category called "Red Texas" makes it easier instead of simply calling them BP X Carpintis simply because it's quite difficult to be sure what is used to make them unless you know the parents lineage. I can look at fish and see it has Blood Parrot in it, another person can see Vieja Synspillum. Understand what I'm saying? Calling them RT is easier than just saying X crossed with Y.I know what you are saying water and I really liked your old non fader it had a nice red base color. I just don't understand the question. There are many ways of making rt or srt but if the fish doesn't fade to red they shouldn't be called rt. Sell them as carpintis x bp cross or carpintis x kkp or whatever was used.
It just seems pointless somebody asking if a non red fish is a red Texas. There is no way of telling what it really is.

