Tall Man Finger question

I don’t think this has been answered before, so I just thought I’d ask. As we all know there are lots of skills and items that can summon a Zombie Dog, and you don’t even have to equip the Summon Zombie Dog skill to do it. However, Summon Zombie Dogs always summons the maximum number of Dogs you’re allowed to have, while the other methods of getting Zombie Dogs only summon one at a time. My question is this: If I’m using a method of summoning Zombie Dogs other than the Summon Zombie Dogs skill, will I need to summon my “tall” Zombie Dog over and over again to get him to full power?

To phrase it a different way:
After first summoning my first Zombie Dog, with Tall Man’s Finger equipped, will it be more powerful than one Zombie Dog? or will it already be more powerful than the maximum number of Dogs I’m allowed to have? Does anybody know the answer to this?

Nope. Big dog’s power quietly updates as appropriate in the background.