that was exactly our goal...you don't know how bad I wanted to chime in about equipment making the "surf vs. skim" discussion irrelevent (well actually you do
Right now Walzer is making 3 basic lengths- 52", 54", and 56". Combined with the tail, fin, and core options anyone can customize the perfect wakeriding tool.
The fins are also available in a 3.25" but I prefer the smaller set. Like you said it gives me extra drive and control but is still really loose and retains a lot of the "feel" of riding a skimboard.
A website is in the works and should be done a week or so and boards should also start trickeling in to local shops.