Thanks for the resources. With a quick glance, I did not see anything that might help in automating a choice inserted into an action (without learning scripting language which, I think, is beyond my desire at this point).
The Insert Conditional function is a half step removed from being perfect for what I need. I do not need the "Else" aspect, I just need an action to stop and allow me to pick the particular subsequent action needed to continue and move forward from there. Obviously, I have the two individual Shake Reduction actions written and working properly based on the file size and it would actually be less key strokes to simply remember to pick one or the other action "manually" as needed, but I rely heavily on routine to keep my mind clear, and remembering Alt-F4 or Shift-F4 will be a challenge. If I forget and press Alt-f4 which has been routine since getting the SR tool, I guess the "reminder" will be the error message that states the image has the wrong file size saved.