You dont need to go any faster griff !
We need you to slow down a bit more so we can catch up and race with you
I started using a laptimer recently, and found it good in any kind of practice, as dom says, and really wished I'd put it on at cadwell on sunday, cos I find it difficult to keep my pace up after I've managed to overtake someone ... but in close races like most of us have been having, you would need 2 sets of split times as well !
I'm thinking of fitting magnifying rear-view mirrors instead to scare me into thinking the following riders are really close