A railbucker like the ANS, Satch Track, Chopper etc is always going to be a compromise. It will never sound like a real humbucker or a real single coil, and getting both of those sounds from one pickup is a tall order.
But yes, the Satch Track in parallel will be closer to the strat thing and it sounds great in series of course. BTW, I have almost exactly the same guitar as you (RGR465) and Ive had quite a few of the DiMarzio railbuckers in the neck slot (ANS, Pro Track, Chopper and now Satch Track) and the ST is by far my favorite. For reference my bridge bucker is a Transition.