did a little - well a lot - of digging on the forum and found the answer myself:
"Amp/effects.
I use a Line 6 Flextone 2, 60 watt combo.
Also a Pod XT-Live.
Why did I choose the Apache's over the Sultans?
Well I couldn't choose, Tim suggested the apache's as I wanted the vintage sound such as with Mark's 61 strat, so I went with those.
I wanted my MK sig Strat to have the vintage sound of the guitar it was based on rather than the Texas Specials that are stock on the model.
I think, and I could be wrong, that Tim named the Sultans, Sultans because they are the cleanest pickups (Alnico 2), and people associate Sultans of swing as one of the most recogisable clean classic strat sounds.
Mark did and still does use Alnico 2 pickups in his main Schecter strats they are Seymour Duncan Alnico Pro 2.
I wanted a pickup that would be the closest to originals for the sig model.
Stef."