Well, from what I've gathered from one of my best friend's hinge triggered Cockers, it's not at all a low pressure Spyder. In fact, I don't think it to be anything like a Spyder except for the motion. Why do people like it? Simple, really...the same reason they like a lot of other guns, most of which being electros: they can shoot it quickly and smoothly. The WGP frame doesn't have set screws, which is a major downside of that particular one because every frame for practically every gun should come with set screws. What player that knows what they're doing DOESN'T use them? If you use them they make a ton of difference in trigger pull. In fact, they're often the biggest part of the difference between one setup's pull and the other and the easiest route to that which fits the user best.
Cockers' design basically can serve anyone, but sliding triggers just aren't for everyone, hence pivot and electro frames give people who don't like the sliding trigger the option of Cockers that they can shoot well.
