The informative booklet in the Mosaic box has some interesting details of the rehearsals and recording sessions for Solid State, also about Solid State's 'ethos'. It mentions that Phil Ramone and Manny Albam were involved and that rookie recording engineers used the rehearsals as training sessions.
I have most of the sessions on original LP (some UK pressings, come US) and also the Mosaic on vinyl and I enjoy the sessions both with and without reverb. The reverb works best IMP on the original, first session.