So I want to create a number of bootable USB drives configured exactly based on one that I have already configured. I understand the best way to do this would be via drive cloning so that the new drives will be bootable. Since there's ~20 USBs to create, I'd like a program that can clone to multiple disks simultaneously.
This program seems perfect, except for one problem. The two flash drives must be the same size (larger-smaller doesn't work, smaller to larger limits capacity). What drive cloning software can I use that can clone to multiple drives simultaneously and does not require them to be of the same size?