What I mean is someone bred a cross back into a florida king.So it is not just a 50/50 cross.
I have been doing crosses and studying crossed florida kings (a specialty ) and going to different florida shows... Floridian residents tend to cross the florida kings back into many things. So you see all sorts and get the eye for it after a few seasons. I also was a connesuer of pure brooksi before the morphs hit the market. I would weed out the good looking brooksi for the bad from breeders clucthes when a high yellow brooksi was all the rage (pre hypo brooks). My opinion is it has something else in it.
Not saying anything bad because I like crosses. So please do not think I am devaluating your snake in any way. Just an opnion from someone who knows something about outcrossed florida kings..
Speckled / yellow rat X florida king breeding:

Even from this breeding which is 50% florida king the babies came out looking very floridana. If you breed these babies back into a pure floridana you would get something that looks like yours and they would only be 1/6 speckled 1/6 yellow rat..