I don't think P3 or P10 mean much as once the volume and your hearing settles and is used to the stimulation, the programs would be like, one normal, one ADRO, one Auto sensitvity, One for music, one for every day etc that kind of thing.
i guess in few months they will set your other processor same as your usual processor so you would have one as spare just in case one breaks. You are lucky to have 2 processor for one ear as i am only allowed one!! ;-( it would be great to have a spare one without worrying about making appointment for another visit to audi. I have been back and fro from audi alot since switch on which is good sign as my ear is used to the implant quite quickly. At 4 and a bit month and 47 maps later, i think it had started to level out loudness wise as i haven't used my louder program yet. I have P1 Normal, P2 ADRO P3 is ADRO + Audio sensitvity and P4 is louder of P2, I am currently using P2 as i prefer it to P1 but don't like any of it! It sounds flat so i guess a trip to Audi is needed!
