604.38—Discovery.
        
        (b) 
         The PO shall limit the frequency and extent of discovery permitted by this section if a party shows that:
    
    
    
        
        (2) 
         The information requested may be obtained from another less burdensome and more convenient source;
    
    
        
        (3) 
         The party requesting the information has had ample opportunity to obtain the information through other discovery methods permitted under this section; or