[Powers] ER w/ Affect Others (limited)?

[Jerander]

Hi,

Based on the Improved Zombie template that Kromm published in an early issue of Pyramid (#5?), we have the following ability:

Energy Reserve (Area Effect 1, +50%; Affect Others 1, +50%) [6/level]

I'd like to modify the ability so the Energy Reserve can only be shared with one other, very specific, individual. My thought would be to put an Accessibility limitation on Affect Others, like so:

Energy Reserve (Area Effect 1, +50%; Affect Others 1 (Accessibility, Twin brother only, -50%), +25%) [5.25/level]

Does this build look legit? If so, did I price the Accessibility correctly, or should it give an even bigger discount?

Second question, what if the person *possessing* the ER cannot use it themself? What if only the specific person ("Twin brother") can access it? Could I do something like:

Energy Reserve (Area Effect 1, +50%; Affect Others 1 (Accessibility, Twin brother only, -50%), +25%; Others Only, -50%) [3.75/level]

Thank you,
Jerander.