I should mind my own business, because I'm not a Strat guy and I don't own any BKP Strat pickups, but I think Blug's tone there is quite round and smooth. He never really gets twangy, spanky, clucky, quacky, glassy... all those terms they use for vintage Strat tones. It does sound like he's using a fair bit of processing and a "modern" amp of course.
I'd have thought you need pickups with a bit less brightness, less of an edge, a bit more warmth and sweetness. I always thought that meant '60s rather than '50s, but from the clips I've listened to the Apaches aren't at all lacking in warmth, in fact they seem rounder, a little more open and more dynamic than the MMs, maybe... the MMs are slightly more snarly and aggressive but the clean tones aren't as pretty.
So I'd say Apaches, but I don't really know what I'm talking about...
This is most definitely giving me Strat GAS, by the way.