I know some perrenials don't like to be cut back in fall and for some it doesn't matter.

I figure I take this approach.

Any perrenials that have erect stems after the foilage has fallen should be cut back in spring. For example Coneflower, Coreposis, Speedwell.

Any perrenials that has foilage that falls to the ground but is still attached to the crown should be cut back in fall. For example Iris, Daylily

Is this a good "general rule of thumb" to follow?