MY FISRT Half distance Challenge

On May 24th 2009 i will participate on my first half challenge (1/2 IM) distance in Barcelona-Maresme (Spain).

I ran olny 3 sprint triathlon last year. I come from MTB world and Mountain Duathlon world, i run marathon and half marathon etc…

Any suggestions or tricks ??

Thx !

Swim a lot. Sprint to 1/2 is a big change in the swim.