I’m coming around to the idea of a 4 day Test. Providing that the teams get their overs in promptly, better to have four competitive days. I think too many teams get behind the 8 ball and give up because there’s no way they’ll hang out for 5 days.
Funnily enough, the use of lights means that we shouldn’t lose as much time and batting is more difficult. In effect, it could work against 5 day tests (especially in damp overcast conditions). Again, could it mean that we should welcome 4 day matches?