This is one of my biggest gripes with vapourbot design - people make a massive kerfuffle about shufflers yet no one seems to actually understand what is and isnt one.

As far as I understand the FRA rules, a shuffler is something that moves using cams as the thing that contacts the ground aka the foot.

Anything else that actually has legs is defined as a walker, even if it has cams or gear systems to define how those legs move as is the case with the cheeky boy system or the anarchy system. And realistically its very very tough to design a walking system which does use either of those with it still being weight effective. Sure you might be able to build it but you end up with the manouverability of a legless toad.

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Anyway, as to Ben:
As I said - either give us a quick drawing or quick description of what you want to design and well walk you through in theory how to do its stats, or if there is somethign fundementally wrong with it, why it wouldnt work and suggest changes that would make it work.