I believe the 531 blades are heavier and, most likely they would all have a 2" rake (standard Fat Chance geometry). The Tange Prestige blade box crown most likely would all have the Wicked geometry of 1.75" rake so those would be more likely to respond better on singletrack. I believe by the time I started there (late 1986) Chris had already switched to Tange for the box crown blades with the rifled Columbus steerer tubes. The Wicked was just coming to life then too. I believe 1987 is the first official model year of the Wicked and the Team Comp was redesigned to that geometry. I have a box crown for my '87 Wicked that has the Tange and Columbus combination. Since it is not gusseted, I have retired it. Sorry, its not for sale.
Scott