Yes, you can mount the SlimShady on the Load, Mega, and SkinnyWarrior Baskets. You will need to place the SlimShady mounting brackets about 6" in from outside rail of the basket to allow for access to the zippers and for the support arms to fold out, see photos below.
Please let us know if you have additional questions here, or by calling customer service at 888-925-4621 M-F from 7 to 4 PT