Documentation for Turbine (ie, 0.3.0rc1 notes) state optimum RPM for turbines are 800 or 1600 RPM while GUI mouseover documentation states 900 or 1800 RPM are optimal.

I'll update this tonight, but everyone should have update permissions on the wiki...

Ahh, didn't check for that. I'll go fix myself then.

Ah, on the Big Reactors frontpage, not the wiki. Because I haven't made a wiki page yet (oops).

Fixed.