I think the declaration was a very good move and petty well timed. And I am a huge fan of declarations when used strategically
nope, nothing strategically good about this declaration. It's the mid point of the third day FFS.
Has he kept the Indians out in the field to tire them out and maybe even blow one of their bowlers out for the series? Nope, only batted a bit under 5.5 sessions over 3 days - India happy.
Has he denied India use of the pitch whilst it's still a belter? Nope he's given them a good half a day at least on the pitch at or near it's flattest - India happy.
Has he given the openers a tricky little period with the new ball to survive before a break or stumps? Nope he's given them an hour to settle in before tea and then the whole last session - India happy.
Has he put so many runs on the board that the Indians know that even if lose their 10th wicket on the last over of the 5th day they lose. Nope, he's actually opened the door (admittedly only a tiny crack - but open nevertheless) for India to set a small on Day 5 - India happy.
There is absolutely no strategic advantage from the declaration. I don't doubt we'll win and win well, but it would have been sooooooooo much better to go for the 400 AND win. If we win this batting another 2 hours wouldn't have made it any harder, but might have made it easier.