>Set filter to slow?? If you have the filter based on a Rushmore optimizable statment, set filter is as fast as any other Rushmore optimized function. Unless you are doing string searches, which can't be optimized ( $ functions) then create a tag for the expressions and use set filter.

Thank you for your works of advice. I am actually doing a string equivalency comparison (my primary key is a string). Is string = also not optimizable?