I use a Pure Tone jack socket screwed into the Allparts jack plate. It hasn't come loose in the 3 1/2 years I've been using it (every day on my only electric).
The jack plate was easy to fit - taped in place and drilled through the holes on plate into body for correct angle - and it doesn't rotate or wobble when fitted.
The nickel plating has also stayed unblemished.
There are a couple of cons:
- It has a flat lip around the edge, yet fits on a curved corner of a T-Style guitar. You have to do a little bit of see-sawing when screwing plate to body to get it to look even. (Still looks smart, though).
- If you ever have to remove the jack socket, you will have to unscrew the jack plate from the body first, which could strip the wood screw holes over time.
With a flat plate, like on a Les Paul for example, you only have to loosen the nut on the jack socket and leave the plate attached to body.
So, it's not a perfect design, but it is still very good.
It's well made, durable, and looks tidy when fitted. I am happy with it.