Wetsuits should fit snug (but not restrictive) when dry. They "loosen up" a bit when wet. If the 6 fits you better, ignore the chart and go with it.

In my experience with selling wetsuits, the size chart is a good starting point, but certainly not the definitive answer.

CONGRATS on signing up for your 1st HIM!! If my half-marathon goes well this year, I might be crazy enough to consider a HIM in 2010.

Susan