Well, the body was pre-routed for a trem, though I drilled the posts (but otherwise it would've been 6 screws). I'm not sure what the extra stress/strain of using a trem is, as you are just changing the angle around a fulcrum rather than forcefully heaving it backwards and forwards; however, that does have some interplay with the string/springs tension.
I wonder about on a bass, the tension might cause the bridge screws fittings to degrade over time.
Obeche does seem to be a current flavour.