My cards are all stabilized and have good fans directly next to the cards (similar to yours, but without the great case (I am on the waiting list for one)).  My rig is very stable with chainminer.  Just not with bfgminer or cgminer.  My only issue with chainminer is the lack of support for failover.

I'll try heatsinks.  Which piece is the voltage regulator and are there any gotchas or risks to be aware of?

I didnt get any answer from dave if boards would ship immediately or if they were still on the way from fabrication next week. In either case, I have decided that $750 per card (~0.9BTC) is excessive for the product considering even a 35Ghash speed. Obviously im not the only one, since MBP has sold all of 22 cards in the past few days.

When Dave drops the price to something reasonable, and/or prices his store in BTC, I would be more than happy to organise a groupbuy for a few ontario residents since there seems to be 3-4 people looking for a few cards each. Hopefully bitfury comes to senses and drops the price to 0.7BTC or less over the weekend, in which case i would go ahead with purchase

Here is a closeup look at my card a v2.2 version H-card.  I don't see anything in that spot other than the trimpot.  Is it the trimpot, itself that needs the heatsink? Or that tiny thing labeled R01F?

The voltage regulator that needs to be heatsinked?  It's the dark gray integrated circuit in between C01R and the Pulse inductor.  I attached mine to the back rather than the front, though.  It is tricky either way because you do not want to accidentally short the other components.  On the front, the thermal conductivity is not as good.  On the back, the heat sink barely contacts the area where the regulator is attached due to live traces and components.

Yeah the one above C01R is the one you want it gets pretty hot. Its a night and day difference for my cards, it runs with the heat sink in those locations and it will just plain shut down without them.

anyone have advice for NOT ruining the SD card everytime the unit power cycles? Using 'sudo reboot' after a chainminer update (because the SD got ruined and i had to re-write it using an image from early november, since noone seems to have uploaded an image with the chainminer update) ruined the SD for the second time today.

ps: of the 2000 newly stocked h-cards, only about 30 have sold. is there any plans to reduce the cost to something reasonable?

yes, sudo reboot mess up my sd image too last week and sometime I did stop Bitfury admin then turn off psu work better than do reboot.