Rogue feat Light Step and the Tumble Through action

[jakjr15]

I was hoping to get an official ruling on this. I have discussed this with many people on Facebook and it seems we are all conflicted.

Light Step - You aren't bothered by tricky footing. When you Stride or Step, you can ignore difficult terrain.

Tumble Through - (single action) (Move) You Stride up to your speed. During this movement, you can try to move through the space of one enemy. Attempt an Acrobatics check against the enemy's Reflex DC as soon as you try to enter its space. You can Tumble Through using Climb, Fly, Swim, or another action instead of Stride in the appropriate environment.

If you have the Rogue feat Light Step, and you are on the ground performing a stride instead of another action during an attempt to Tumble Through, does it apply when performing a Tumble Through or other action who's subordinate action is a Stride or Step? Or is it like the Quickened condition that limits you to specific actions and not actions or activities with that action as a subordinate action?

Thank you in advance

[Tarpeius]

The rule you have in mind covers a granted specific extra action or an added effect conditional on the next action being of a specific sort. You can't use that extra action or satisfy the next-action requirement with an activity/action that has the granted/required action as a subordinate. So no, e.g., Exacting Strike in place of the extra Stride/Strike from being Quickened.

Light Step modifies all Strides/Steps a character performs and thereby also modifies Strides/Steps that are subordinate actions. It's not unlike Sneak Attack: you can still sneak attack even if the Strike is a subordinate action of, e.g., Twin Feint.

[Andy Brown]

Seems simple enough.
Tumble Through says You Stride...
Light Step says When you Stride...