enchi fire bee?

I've had this guy for two years and STILL can't decide if he's an enchi firebee or a killer bee fire. Dad was an enchi firebee and mum was an enchi pastel, what do you guys think?

Him and his sister around 250g
http://i1081.photobucket.com/albums/...313_125059.jpg

His sister now (1700g) enchi bumblebee, firebee or just plain bright bee?
http://i1081.photobucket.com/albums/...711-WA0002.jpg

Apollo now (1kg)
http://i1081.photobucket.com/albums/...711-WA0001.jpg

Just had a clutch hatch from him and my female pastel yellow belly... these are the most confusing babies ever!

I'm no good at correctly identifying what he could possibly have (yet, still learning) but perhaps the easiest way to find out would be to pair him to a normal female?

I'm pairing his sister to a visual recessive so I'll hopefully have an answer and some juicy hets :) I paired the boy to my pastel yellow belly girl hoping for an answer and I'm 90% sure ive got it but hatchling are so bright that I still have a shred of doubt :)