i dont see how yellowbelly can be a more recent thing, or underrated, when in all the combos on WOBP, yellowbelly is the third most well-represented gene in the whole database.
(you have to take my word for it because advanced search, as well as the counter for the amount of morphs shown after you do a search, have been removed from WOBP without replacement).
there are more combos with yellowbelly in the database than there are with any other gene, except for pastel and spider. Its bigger and more deeply explored than enchi, lesser, mojave, pinstripe, or fire, or any other known gene.