You could add the Forskolin of course instead of ABE. But with ABE you get more then just Forskolin.
AB/ABE has anacyclus pyrthrum which is a natural anabolic with androgenic effects. AB only has anacyclus pyrthrum while ABE has forskolin and has a cortisol control in it. So in short, ABE is awesome for a recomp/cut (gaining lean mass while keeping fat to a minimum).