i called growopz the other day. dude answered sounded half asleep, couldn't even tell me what bin it was they use. anyway, after im guessing a quick google search, mailed me back and said CD bin. Ok not bad, thats just a catalogued chip, true top bins are not catalogued and are reserved for the likes of spectrum king, optic and those who have connections at the factory... As for RS components, they don't even stock the CD bin, so yes, cheaper to build yourself but it will be nowhere near Apollos output...
Happy smoking and peace out guys