Starting this thread for all of the new builders who are getting eXStatA boards through the latest group buy.
One piece of technical info for you new builders. On the website there is a fix to kill oscillation in the first beta run. This fix entails wiring two of the heatsinks to ground. A diagram is provided on the website.
The new boards, however, already have this grounding built into the traces. All you have to do is to be sure to solder the two CCS heatsinks on each board to their pads. I'll try to add this info to the webiste.
This applies only to the SS board. I recall that the hybrid board did not need this fix. But I may remember wrong. If so, then the fix is still to wire the heatsink pins to the ground point at the input terminal block.
In addition, all of the heatsinks now have metalized pads so that you can solder them in place.
In all other respects the new boards are the same as the original betas, all of which worked when built correctly.