Our new finish Strat pickguards do not have the scoop because current Strat neck production has the adjustment nut too low in the neck to make it possible to use without loosening the neck mount screws.
You will notice that our Vintage Relic pickguards do have a scoop but it is really replicating the damage that the pickguard used to get over time from the screw driver digging in to the pickguard when the neck mount screws had not been loosened enough.
Back in the early 60's the truss rod adjustment nut was much higher in the neck and almost at the top edge of the fretboard so you could just about adjust the truss rod. Strat pickguards were made with a small scoop with the idea that you could make the adjustment but you would likely scrape the pickguard if you tried and so you would have to loosen the neck mounting screws to get clean access.
For a long time Strat necks have been made with the nut too low to allow adjustment without loosening the neck mount screws. Even current custom shop Strats do not have the nut high enough, they are under the fretboard, so you must loosen the neck screws to make adjustments.
Makers like Grosh, Tyler and others have embraced the notch and make them somewhat bigger and rout their bodies in such a way that you can adjust the truss rod without moving the neck.
To adjust the truss rod on a Strat you will have to loosen the neck screws enough to angle the neck back to expose the adjustment screw so a scoop does not really help. With a scoop you may need to loosen slighly less but not enough to make a difference. There are lots of videos on how to do this just search "strat truss rod adjustment".
You probably need to adjust the truss rod once or twice per year in the winter and summer as the humidity changes. With central heating the humidity in your house can drop fro 50% to 25% and this is what usually causes problems especially on new guitars.
