Just my opinion, getting a PAIR of bees with spider genes, you are not only breeding siblings here with the spider gene that you would actually want to OUTCROSS instead of line breed, you would be a LOT better off asking the seller if they have a super pastel to breed and then you would have the chance to get
Genetic Wizard 3.0 calculations by
Which is not only better odds to get a killer bee, you can get super pastels and you will have bees, and then of course your pastels.
Oh, and if you pair to a lemonblast, you can still get that killer bee, in fact look at all you can get:
Genetic Wizard 3.0 calculations by
LOTS of neat stuff.
I know it's more expensive with a lemon blast, so if you're on a budget, I would ask the seller if they have any super pastels for a group buy to go with your bumblebee. I still don't understand why you would want to breed two sibling spider gene carrying snakes. It makes no logical sense.
Also, that picture above is the axanthic killer bee as already stated, so there is no argument there.
PS do not forget, if you're getting a "great deal" on a couple of snakes, make sure it is from a reputable source. Someone here on the forums or a local friend I hope. I don't see it going well otherwise.