The ratios are difference, the chelator is also different and better suited for our tank's KH in TMG.

I'll address this more later when I start delivery of the Barr's matrix micronutrients(BMM). Probably mid-late summer. It's 5x more than CMS but 20X cheaper than Flourish or TMG and better than all of them.
I'm not worried about TMG or SC F being a competitor, unless they drop their prices by 5-10X, which they will not, the BMM will do better in the market due to far lower shipping cost and better ratios specific for aquatic plants, as well as better more specific chelators for our purposes.

Regards,
Tom Barr