Steve, >> Do you think applications have a need for using SAC?
You could have asked when 64 bit was not available. The answer then: YES of course. Today: maybe, if the data is still in a dataspace >> ... a shop where the top manager banned BXLE - he thought it was too hard to understand!) Today you can resort to JXLE (or JXLG or BXLEG) ;-) -- Martin Pi_cap_CPU - all you ever need around MWLC/SCRT/CMT in z/VSE more at http://www.picapcpu.de