The DK 17 was designed for 100+ kilo sailors. Lars is around 80? kilos. That is about 15% difference in displacement. In terms of an Inter-20 this is changing from 325 lb crew weight to 435 lbs crew weight. Don't ya think the hull shape mightneed to be a little different? I think that Lars feels the A2/3 is the best hull shape for him. The problems with the A2 were build quality not handling characteristics.
Cheers,
Eric