OK, I understand the concept of "included libraries" including other libraries that aren't called/used by the main program but get compiled to object code and that the final LINKER does not include that / those modules because there are no references to them in the main program. Allen may have forgotten that fact as I did till you reminded me of it.
My intent on starting this thread was / is two fold. One, too (is that the correct to??) discover how to have just the needed code included in the final executable and two, to be sure that there are no hidden delays / waits anywhere.
My main concern is having a pin go high but is missed because the cpu was in a "busy wait". My little understanding of the Arduino boards is that the pins are NOT latched when active and are free to go inactive (low) at will (follow the voltage).
Thanks for your analyst (sp?)
Regards,
-Ray