As stated, the price savings for WC844 really just isn't there. Here's why:
See, the thing with WC844, is you really don't know what lot you got. It's more than just the powder lot itself. It's also the vendor - who found a "deal" to get their drums of WC844. And decided it was good enough to house packaged it, and who you hope house packaged it correctly too. With H335, in general, 25 gr of one bottle of H335, is going to be about the same as 25gr from another bottle. But with WC844, lot to lot variation can be much wider. So OK, no big deal, buy 32 lb all of the same lot, work up, and who cares - right? For the most part, that's right.
Then there's the other shoe. WC844 is surplus powder usually not intended for direct commercial sale. So.... how did this vendor get this powder? Was this an overrun and good quality powder? Was this a rejected lot they got for dirt cheap? I've seen testimonials from people who've bought 3rd party jugs of house labaled repack's, and seen horror stories from it.
And that's the thing with Surplus WC844 types of powders - you don't know the progeny. With a jug of labeled H335, you do. I've gotten excited by the WC844 come-on's. And the amazing savings. And how it's promoted in such a way that you get all excited - at paying 90% retail that is. Stupid. I wasted a lot of time and money that I could have just saved if I stuck with the name-brand items. At %60 retail - sure, worth it. At 90% the $150/8lb jug of H335 often seen if you shop - forget it.