BRG,
If I may offer a piece of advice to bring your times down. Please feel free to tell me to naff off.
Get some cans on the bike ( though i think it may just have been a quiet day at Oulton).
Body position. Now even though I do the same. Try and get your head nearer to where the mirror would be. I appreciate I do it too but I'm usually petrified I'm about to have an earth-sky-earth-sky-out moment. All the instuctors all say to me that i need to lean forward more to sort the weight distribution out.
Just thought i'd try to help bud.