We had an absolutely outstanding nights observing last night. Seeing wasn't the greatest but transparency was excellent and the skies were very dark and clear. I was able to see 8 Pleiades naked eye. M33 was visible naked eye and the Gegenschein was clearly visible. I got an average reading of 21.89 on the Unihedron Sky Quality meter. At SPSP site at Ilford I normally get 21.4 to 21.5.
Unfortunately I couldn't get the ETHOS to reach focus when combined with the paracorr, so I didn't waste time with it. Without the paracorr stars are not quite as sharp in the ETHOS at EOF as they are in the centre due to coma, but it is certainly not objectionable. None of the dozen experienced observers present, perceived a need to use a paracorr.
A paracorr may improve the view with the ETHOS but it isn't 1/2 bad without it
Cheers,
John B