What is the difference between....

No experience with those, mate, but check out KD Holster's Dakota Defender. I just picked one up used for my G22 and it's a great tuckable IWB. http://kdholsters.com/iwb-defend.php

Went to their site, can you send a picture of the back side of it with your weapon in it, as well as it in use and shirt tucked in? Thanks.

I have my answer:

Thank you for contacting us. There really is no difference. All CrossBreed
SuperTucks are "Deluxe". I think at some point there was an upgrade and the
"Deluxe" became the new standard.

Let me know if you have any other questions.

Thanks,

Tom Smith
Stillwater Armory