on my American Deluxe Stratocaster , 60% time I use mid + neck :D
Same pickups in there I suppose?
yes , Lace Holy Grail
That's why you got a balanced inbetwee position. When you use different type of pickups it could lead to a mismatch. I don't want to lecture you, but it would be a waste of effort and money to get and install pickups that don't blend nice. Personally I would go either Apaches or Slowhands for middle and neck. Choice depends how hot and what kind of eq you want your singlecoils.