That has been my experience as well.  All my 1080Ti's, be it air, hybrid or water, have been mining @ 200 watts since the day I got them without a single issue.  Re. the MSI 1070 Sea Hawk that failed, don't get me wrong, I pretty much ended up scoring a 1080 Sea Hawk for $400, so no complains on that front from me!

Thanks for the link to the overstock/auction solar panels from SEP.  ~$100 for a 230 watt panel is way better than the ~$190 I have been paying for 280/290 watt panels.  Granted they are poly-crystalline panels vs. mono, but at that price, I'm not complaining.  So you just keep an eye on that website and sometime you see deals on similar panels as low as $50 each?

Looks like they have a warehouse in Indiana.  How are their shipping rates?  I typically buy 24 or 48 panels at a time to get close to a full pallet (or two).  I also like to pick up shipments directly at the local terminal, which often saves me a little on shipping.  Very tempted to bust out another 24 panel ground array.  If I do, I'll go with just a single converter vs. micro inverters, to bring cost down even further.  I can pick up a 5,000 Watt (output) SMA Sunny Buy for around $600 shipped, which works out to about $0.10 per Watt, or $25 per panel.  Micro inverters typically run around $100 a pop.

So right around $3,000 for a 5,520 Watt array before the cost of a 24 panel Ironridge ground mount kit (about $1,300 plus locally sources 3" iron pipe) and wiring (about $200 if you make your own).  I'll check with SEP to see what their ground mount kits cost compared to what I've been paying Renvu.