1219 and 1069 are close enough where I think you won't have to do anything other than to clear a few errors. Honestly for home use, there is not significant advantage on going to an SP1272, you might be better of if you are a beginner, just swapping out the SS prom and clearing the errors that go with that instead of doing a full sp change. With just an SS prom change you don't have to to re-enable validator or set up denomination, with the SP chip change, you may have to, but not entirely sure since they two chips are of close enough release dates.