I work with db2V7.2 and Aix 4.3

All the packages in our applications are BLOCKING = U (Block unambiguous cursors ) because in bind script we do use BLOCKING option, and in our sqlstatment some times we use FOR READ ONLY,

could you please let me know is it better I use BLOCKING ALL in bind, or "NO" and how can I get some information about relation between the value for this parameter(BLOCKING) and FOR READ ONLY with performace of application.

Thank you in advance for your help