Both questions are pretty difficult to answer cause it'll depend on the number of stage(s) running at once, and how high the CPU is overclocked.

Tuning has started.

- 1st stage = HSP @ ~ 10bars & TEV @ -67C



- 2nd stage = HSP @ ~ 10.5bars & modded TEV (R1150) @ -111C



- 3rd stage = HSP @ ~ 7bars & CPEV (wide open) @ -112C



Just for fun. 1st stage is way too cold this way. Anyway, I'm very surprised how well it actually holds to load of the running lower stages even with such a pressure.
With the CPEV opened like this, the 3rd stage pulls down amazingly fast!!