Basil, I love that method of teaching an instant down - great fun for the dog. Might have a go at that with Pip.
Fan the BT at our puppy classes was full on 100 mph too. She was absolutely tiny and gorgeous, but I have scars on both arms where she sank her teeth in and wouldn't let go when we were doing the vet-handling part of the certificate. The owners love her to bits, but said she was exhausting! 
They dropped out after the basic puppy class, probably because it was just too high stimulus for them to try and train with a group of other dogs all moving around her.
Dogs are having to take a back seat today, as we have back to back children's clubs and birthday parties.
I hate days like today and dh has manflu a cold and is in the foulest of moods, just to add to my joy.
To be fair we were told to keep their walks short and make sure they get plenty of rest while they're getting over this resp infection, so two short leads it is for today.
Lurcherboy is like a different dog already. He's seen plenty of dogs since he started his meds and not had one reaction, so it seems that was our answer to his strange behaviour.