I got this email.  I'm in batch 2 with an order for three Sierras.   If I switch and agree to receive three Sierra EVO's I'll get 6 T/h in May instead of 3.6 T/h in April.  Will I actually receive ANY Sierras?  I'm just rolling the dice at this point.  I've moved on to other cryptocurrency endeavors.  But hey, if I get what I paid for.....BONUS:-)....other wise I'll just look for a way to write this off as a loss to help reduce my taxable income.  Moving on:-)