I'll have to give that a try next time. What profile do you pick up in that blend?
I know you didn't ask me but since I've had Ballantine's recently enough, I'll give my thoughts: peatier than one might expect, with a fine note of honey and sherried malt. Firm grain bite. Decent body for a cheap blend.
Evidently Jim Murray gives this top honours for NAS blends in his 2010 Whisky Bible.