! other thing that effects the time is how your flame is set. If it's not set like the last time you used it changes the time. I adjust my flame by the center. I make it as long as it will go then back it off till it shortens then turn it back up till just reaches the longest spot.
I use a bench source and set the flames so 1 is at the bottom of the shoulder and 1 at the top. As for time it depends on the brand of brass. Takes about 4 seconds to do a 6.5 prc case.