Waibel's WP suspension was done by a Dutch guy called Stamsnijder. He also worked for Ten Kate Honda duiring the season in wich they grabbed their first SS600 worldtitle. He has his own company now: SO-Products.
http://www.so-products.com
He has also done my Ohlins suspension, it feels softer as with the factory settings but the bike really feels stable on the racetrack, even at high speeds! And tyre wear is much better as before!