If I wanted to be able to drink it straight and I used a white whiskey then I'd use a heck of a lot less oak and dilute with water so it is closer to the proof of a bourbon.
Agreed. I have tried a pint or so of white whiskey with two, maybe three, chips to see if the oak and tannins will temper the flavors I don't like. They haven't, but that amount of oak also hasn't been overwhelming.
There's a lot of white whiskey out there, some must be good and some people enjoy it so don't take my experience as universal.
My point is only to be sure you like the liquor you're using if you're going to add it to beer you plan to drink.