Shaina: Combtails can be F2 or F3 bred =D I bred my VT lady to my CT, and I think I have a shaggy VT from it
However I will note, watching people look at bettas they tend to go "Oh look! This guy has spikes..." to the shaggy VTs. I think if you give someone the right colors, and right even look, they'll buy it. I bought "Candy" my CT because her colors jumped out more than the dark blue gal. I bought El Dorado because well...he was gold!
Even if being VTs, they have to have the more rare, unique or awesome colors people love.
My suggestion to breeding: Ask around. Do a small poll if you must, in your area. WHO likes bettas? WHO would buy? And WHAT colors do they love or would like to see? Here, orange is coming back (yessss!!), flawless red is loved, baby blue, purple, black, white, and marble (or koi) is most loved too
I got my game plan haha.
Y'know, for those not breeding super-awesome-could-be-in-shows bettas... Don't overprice the fry. If you have 8, alright. If you have 20, alright. I have all my supplies, haven't needed to spend more than 6.00 on the last one (for leaves I never received >:( ) but it allowed me to learn my female may have "bad eggs" or whatever. I got one fry, who I'm keeping... But for future fry, I intend to beat store prices for my bettas, to get known. My CTs may end up 4.00