I'd be very surprised if we enforced the follow on if we get the choice.Gloucestershire now 5 down, for not very many. We aren't there yet, but Hampshire could enforce the follow on, if Glos can't get to 191.
The sooner Vince learns that Fuller bowls 4 overs spells maximum the better.Annoying last wicket partnership of course. But I'd always have taken 179 all out at the start.