It seems to me though that if you are north you will already be/should be talking to Farnborough west who should be able to give you a poke if you look like busting solent, so why listen to them? if you are flying mid week and heading west you'll be wanting to talk to boscomb at the same time as listening to solent whilst leaving Farnborough west...
the IoW bit makes sense, not so sure about the rest to be honest.