There is a version of this on the market today which is more like Ronnay's Sympathetic Cards. In the Sympathetic Jacks demo I saw, the final reveal of the surprising assortment of backs not only showed different colors, but different back designs as well. The old Sympathetic Cards used Aces instead of Jacks and all had the same back but different colors. Sympathetic Cards was a favorite of mine and I did for a long time with great success.

Magic Makers puts out a version called Color Aces which is very similar to Sympathetic Cards with some slight changes in handling. It seems like it uses Bicycle cards so that is a plus.