That is exactly the part where I'm interested in.

The two designers took a completely different approach here.

Stealth was fitted with T-foil rudders, an active element in the way of prevents hobbie horsing and dives and it definately works (personal experience)

Blade directed alot of attention to making the hulls very forgiving in this respect. Meaning that you can dive them under or rock them about without losing much speed at all and while being assured of full recovery. The redistibution of the volume should cut down on hobbie horsing.

Have both approaches resulted in the same net result or not ?

Would adding T-foils to the Blade make it better still or is that not needed anymore ?

Like I said I'm anxious to hear the comparison by someone who knows that Stealth design very well and thus can make a founded comparison.

Wouter