Disklavier

Hi all

Thank you very much for the information you guys post.  We've got it to 
work and we are enjoying the disklavier immensely.  I was wondering if 
any of you know these two questions.

On disklavier MX80, if I turn the volumn down below setting "2", the  
piano keys are not leveled.  It still plays but some keys are higher or 
lower than others.  Anything above setting "2" makes it leveled.  If I 
play the system like that is it causing some damage?  Setting 2 is kind 
of loud in our house.

Another question is what is the life expectancy of the piano using 
disklavier to play versus using fingers to play? or are they about the 
same?    

Any infomation is helpful and appreciated...  

Jason