...anyone who already has one maybe could tell us if the body has the same cavities as the standard jazzmaster?
I'm very hard to please so don't mind me...but they still have tons more balls than a vintage model. Same as the Jaguar. I have a self humbuckered Jaguar but I kinda wouldn't mind the BT one as its cheap and gutsy and its plain jane look appeals to me, I don't like fancy guitars with lots of switches anymore. I think these are great for a wide range of people who aren't loaded and that have always wanted either a Jag or JM but couldn't afford one.
IMO the Jaguar will always beat the Jazzmaster for pure power (scale and small routing is responsible for that).
They're great guitars and anyone that don't like them is a traditionalist (nee-reactionary) snob! 😁
The jazzmaster is the same minus the rhythm circuit.
The jaguars routing is slightly different to accomodate the toggle but still very small:
This is how routing should be, minimalist and only whats absolutely required...unlike the jazzmasters big ass route from jack to toggle and excess around both pups.