Unlocking the chip mechanically is easy , do it the same way we used to tune all chips.
Desolder it from the board , put it in a eprom programmer , reprogram the chip.
The thing most people forget is every tune is locked from the factory , in the old days us tuners had to work out how to unlock the calibrations , nowdays thatns to EFILIVE all the hard work is done for us .
So in effect your PCM isnt "LOCKED" to a proffesional tuner , just harder to access.
My how we have got lazy and expect everything to be handed to us on a silver plater these days , I suppose it is the way of society demanding this and that - I see it in my son lately and cant say I like the attitude of todays youth.
I think we better buy Ross and Paul a few beers for that