Will an FB-S with PI to Sit Narrow function positionally the same way as an IWB? The IWB role has a few default PIs that I don't want (cross less often, cut inside with ball), so I'm curious if the FB-S with PI will do what I want without the other PIs. Also curious how important the roam from position PI is, which is defaulted for the IWB. I don't necessarily want that, but I'm not sure if it's needed to give the fullback more positional freedom when coming inside.