[QUOTE="Champ"] I assume you mean "not being timed". And this is true - the stop watch is pretty much the only thing that counts in a track environment.[/QUOTE] No, actually I was thinking that it'd be hard for me to back off by 10% if I _am_ being timed, 'cos I'll be trying to shave a few tenths off my best lap, rather than doing a few slower sessions to concentrate on technique