On the subject of Batch 1 Buyers getting coupons vs a 2nd Z9 Mini in the 2nd batch, I would rather have the 2nd Z9 Mini vs coupons that expire in 30 days.
"IF" I were to buy a Z9 mini, I would have taken the first batch or none at all. Especially, with potential forks. August/September ship date is just too long of a wait with potential forks on the horizon. After researching several threads and websites to find out more about what coins are forking or not, I consider Batch 2 or later batches a HIGHER risk than Batch 1. That's my opinion.
Those lucky enough to get batch one should be fine. Those with batch 2 should be concerned. That's my opinion...