Catch22,
Still can't exchange a break tackle piece for a spin piece. Per your reasoning on the break tackle piece, that should include spin but it is not in the dropdown.
I just figured that an elusive ability would allow any SA on the ELUSIVE tree. Just like DIVE FOR YARDSand COVER UP can be swapped for a break tackle piece. I know that cover up is not a function of breaking tackles, but it is on the POWER tree.
Still can't exchange a break tackle piece for a spin piece. Per your reasoning on the break tackle piece, that should include spin but it is not in the dropdown.
I just figured that an elusive ability would allow any SA on the ELUSIVE tree. Just like DIVE FOR YARDSand COVER UP can be swapped for a break tackle piece. I know that cover up is not a function of breaking tackles, but it is on the POWER tree.