I dont think it matters to Solent if its day or night - I have been transiting that airspace for many years (or at least trying to) and they have to be the least helpful unit in the country - when they bother to return your calls.
I even spoke to some of the commercial schools at Bournemouth about this when I was training there and they have the same problems. Southampton (Solent) just dont want to help anyone other than scheduled stuff in my opinion
At one time (up to 12 months ago) I used to sit and add up all the airspace busts reported and Solent was always at the top - probably had something to do with the fact they dont answer you when you call and when they do you are almost on top of their airspace which probably is one of the reasons they kept getting 'intruders'
I have a twin now so have no worries when I go south of their airspace by a few miles.
Been waiting for 30 years to say that and sadly in my opion it hasnt changed in all that time!
