Thanks again Kimmoli, this subforum would not be the same without you. And the Jolla in general.

I'm in for one of this OH provided that the accuracy and reliability are good enough (can you elaborate on both these please?). I may use that for acquirig scientific data, and although these data would be preliminary only and not to be published, I need reliability (at least comparatively among measurements, not so interested in absolute accuracy of measurements).

Count me in in that case.

[Edit] Apparently accuracy is about d=2.5-3.0 (for high gain and low gain, respectively), which will likely be too high for me, unless you have other information Kimmoli.