OMG picked them up at last this morning and - short version for now - I'm
Mclovin'it - bloomin' gorgeous, these! Best piece of gear I got since the A818.
Will post more tomorrow. The key thing - a truly dramatic eureka improvement - I've lucked out with the seal - the AT-supplied big sleeves fit my canals 100% perfectly!
The sound now (flat eq on the walkman)?

and

- totally
Really. As some Brits would say - blimey!