I confirm the issue about assembly on 16 total G28 :
- multiple boards are bent, happily with no consequence for me
- needed to unmount and correctly mount fans because of their power cable being hit

- due to transport, needed to replug the card linking the 7 boards, but on very few units, no damaged pins, using DHL. On the baikal X with FEDEX it was just horrible, bent pin on unmounted board ...
On skein or myr gr i dont have the crashing issue.
But on both on suprnova, zpool, miningpoolhub, for either DGB or XVG : i m missing 10% of rewards because i m missing 10% of hasrate compared to nominal 14 / 28. Whereas with BAIKAL X10 i m at 100% reward compared to nominal hashrate.
Those 10% are confirmed by miner stats : Dacc is around 89 90% but difficulty rejecty is only 0.1 or 0.2% ... where goes those 10 % ... neither the pool support nor baikal had an anwser ...