Yep, same goes for the giant Attacknids, they don't count as walkers despite their complexity. As you know though, Pilgrim, the Attacknids and shufflers are fundamentally cam based, its just what comes after the cam that is different. While I would look at Pilgrim and the Attacknids and call them walkers, when it comes to the rules we can't have exploitable rules that would allow shufflebots to gain a massive advantage. Yep, its complicated...