I don't know ..... Let's see ......
unzip, place
unzip, place
unzip, stack
unzip, stack again.......maybe 90 seconds in all. I'll spare the extra time folding those sturdy cases for that sweet sound , but I'll never carry a 50lb box around and sit it on the floor again. Not after I've been spoiled by the fullness of what I have ! God bless ya, Donny ..... You sound great on everything you buy.