Don't let them print any £ locally
Best you tell that to the Egyptians, Syrians, Lebanese, Sudanese, etc - all of whom are not English but all have the 'pound' as their currency. The English do not have the copyright on the use of the word pound for a nations currency, if Scotland want to continue to call an independant currency 'pounds' then who TF are you to say they can't?
However, with the complete mix of English and Scottish blood in people throughout the whole UK I personally hope that this whole bid for independence fails!
Mysterywhiteboy - what would you do if Scotland get "a chance at a new way of doing things" and it fails terribly would you expect, after you had tried your little experiment, that what is left of the Union will open their arms and welcome a sobbing Scotland back into the fold?