i can change it to 500-800 but is it better than 250-800 ?
still i can't decide which one is better or why so
but i'm sure that :
conservative(batterypatch default governor) with 500-800 is horrible
if u installed BP and wanted to change to 500 instead of 250 then don't forget to change to ondemad too

and please post @SP/BP dedicated thread for any further discussions