I’ve tested three SX3’s, all three shot 1.5 feet low at 40 yards. Not a fan of those. I’ve tested two SA08’s, they shot within 4” of point of aim, pretty decent. They get dirty quick but seem like decent gas guns, my daughter has one.
The best most consistent brands (I have tested over a dozen of them ea) that shoot to Point of aim are benelli montifeltro/legacy and Browning citori’s for what it’s worth