Engine start sequence
Don't know what C130 you flew Guppy, but on the A, E and H models I operated on we started #3 then #4 followed by GTC/APU shutdown then started #2 followed by #1. (On "A" the GTC doors were manually closed. Guess the "E" and "H" just followed the traditional way). L/M aboard, "Doors closed/Checked" Tristar as #2 first then #3 and #1. Pretty sure the B707 and B747 Classics we used same as C130.