I did about 4 10 minute heats with a bit of practise too and didn't find it tiring in the least, the long main straight gives your arms a bit of a rest from the lap anyway.
[TW]Fox;16460764 said:4 10 minute heats isnt really tiring unless you are overweight or unfit or something.
Hi guys - sorry,have been flat out recently. I'm off work tonight,so i'll sort out a few more details.