I took a leap of faith and ordered half case of diapers from ABU. I'm getting 2 packages of SDK and 2 packages of Simple. Can't wait for it to arrive and try them out! I just wanted to try the two tape and 4 tape system but keep it white. Very curious about the SDK two tapes. I'm not too fond of the different colors. Maybe down the road, I will try the Space and Cushies.