Do you mean 95% of samples? If yes, I have a question why?
It would be better that other developers may have the possibility to check if their implementation of 'Bit Minner' works. Also we should split samples through many developers to have some backup in case of someone's failure... what if Burnin will not complete his device... then e.g. BkkCoins could be another source of this or other electronics engineer.
I'm not saying to give all the chips to Burnin.
But in that situation he definitely should get more than 2...
I would go with 10 or 20 sample chips for Burnin and split the rest among other "large" developers - like BkkCoins and evilscoop.
Of course, Sebastian is the one to decide.