Yes, oil pressure OK within seconds (thanks to preoiling). Temperature OK and propeller and mixture OK. Idem for magnetos and alternator. Only issue is the carburetor temperature probe indicating -12?... (strange, since some days ago it worked well).
Battery was kept on charge 24 hours per day in the last year but yesterday we played with Skyview for 45' and maybe the battery tender couldn't charge it during the night (led light still yellow this morning).
The second start was made with airplane battery and went OK. So, at least, battery is not shorted...
At the end, I couldn't expect better than happened. No oil leak on the engine and no fuel leak. SkyView indicators are great. Engine started after one cycle.