Before ditching the expensive stuff, I'd check and see if you like the molasses any better. Could give it the old side-by-side and see. I like it because I know what's in it, and it's cheaper, and it works, and it replaces a couple of products I'd otherwise have (want?) to buy.

Having said that...I still have a half bottle of Sweet, and a 3/4 full bottle of CalMag Plus I haven't used in a while. Perhaps my roses will like 'em come springtime though.