Given the EVO already runs at 750GH/s, anticipating a small additional improvement of 50GH/s is very reasonable. The OP says "up to 800GH/s." Please pay attention and recognize the importance of the key "up to" phrase, which modifies the "800GH/s" figure.
This is the Custom Hardware subforum. We are supposed to discuss things like
-HashFast ASIC specs (original 400GH/s goal met, now up to 800GH/s)
-Cointerra ASIC specs (much less than original 500GH/s target)
we aren't supposed to endlessly belabor flimsy scam accusations like
-HashFast didn't provide windfalls by refunding $100 BTCs with an equal number of $1000 Bitcoins, therefore it's a Ponzi!!11!
If nothing we do could make you consider buying from us, why are you posting here? Batch One EVOs sold out almost instantly, so exhibiting your grudge in public hasn't had any noticeable effect. Better get a Batch Two before they're gone!
The thread says up to 800gh but you just said
HashFast's record-breaking new 800GH/s
Why not hashfast record breaking 750gh?
I agree it is silly to have your company act as a hedge for those who paid with $100 btcs but want a refund of $650 btcs but you specifically said refunds would be in btc. Stupid mistake on your part to agree to such a deal and not hold the btc in case of refunds.
And congrats on selling out batch 1. How many evos are we talking? 100? 1000? For all we know batch one consisted of 5 units.