Yeah, I got pretty tired of eBay customers back when it was my main source of income. I don't know how many times I got offers on things where people wanted 50% off the list price. A lot of times I was selling something like a grade-A 17" Dell monitor for $50 shipped and jerks would try to haggle me down to like $30 or less. After fees it wouldn't even cover material cost and shipping, let alone packing materials, parts and labor, or me being able to eat this week. So many idiots on there.
I did get a response from Bitmain overnight. I pretty much laid out to them why selling us chips would be good for their business (including that they're getting a cut of sales they don't have to work for, and sales in market sectors they aren't even in, and increased R1 sales when Gekko-capable firmware exists, and the good publicity they get from community support) and they said what we're doing sounds interesting and they'll consider selling in the future when they aren't focusing all their chips on S7 manufacture. To which I responded, if I could get 10 or 20 chips that'd keep me busy for a while with prototyping. For real though, 20 chips would buy me at least a month of prototyping before I came asking for anything more.
So hopefully that turns into something. Not terribly optimistic for anything anytime soon. We did get samples of BM1384 about three months after the S5 started moving, and the S7 has only been moving for about two months so by that timeframe I've got a bit of a wait yet. Course dev should be faster this time around since a lot of work will already be done. If we have another Compac it'll be a bit more complex than the last one so to integrate software voltage control, so it'll have a controller and firmware kinda like the pod. Which I should be working on the pod next week, as soon as I get the Compac batch finished up.
I gave up selling on ebay, I have alot of good usable gear to get rid of but dont want to deal with people ripping me off by sending their broken gear in place of mine for a refund and the like.
That would be sweet if they offer a few to mess with until they decide to unload some chips. That way you can prototype sticks, pods, or blades or what ever is in the thought pipeline. I can only imagine the speed of said gear and how much lower you can get the efficiency. I pencil modded the resistor on the huge heat sink compac like you stated but the stick just makes noises, I dont think the powered hub is giving it enough juice.