The pickups are incredible...plus there's a coil splitting switch to split the humbucker.
My guitar tech imports and sells Tom Anderson and Lindy Fralin pickups, when he heard the pickups in the GS models he was blown away.
Not exactly sure what the neck radius is, but I can tell you it's very flat, most probably 12"....the profile is kind of a soft C shape.
The coolest thing is the satin finish on the back of the neck...feels like silk.
The neck is also wider than a regular Strat neck, I'll measure it for you tomorrow.
Brilliant guitars, it's a Strat at a higher level than most Strats you'll play.