I have myself worked with the former Swedish Elan importer for a couple of years and also know Tor from that time. I also bought a new Elan 333 in 2003. I smiled for myself when I earlier read that Fjord Sail will stop with Elan due to among other things warranty problems. We had same problems in Sweden.
Going back to the 400 I basically think Elan is doing the right thing making it slightly more traditional. I do not think Elan are prepeared to make the boats as extreme as the Pogos and then they will not plane without very big efforts. Accepting semi-planing speeds and improving up- and downwind and light wind speeds might be the way many are going today.
By the way, I sailed hard on the wind today, TWS 20-28 knots and 2-3 m high swell from Scotland. Two reefs and staysail. Boat behaving excellent, no hard slams and appr. 6,5-7 knots speed at 35-40 AWA. Very saitisfied with how the boat took it.