I see no problem using multiple commercial beneficial microbe products. The more diverse, fully relevant (vs. random home-made tea) microbes given the chance to colonize the roots and coco the better (much as soil has very diverse microbe content). Dynomyco contains only mycorrhiza fungi. ReCharge contains a much wider selection of mycorrhiza and bacteria, and also kelp, humic and amino acids, etc. [If have both, use both].
I always use several products throughout a grow, even mixing in the same feed is no problem. For ex., I currently use Advanced Nutrient's new tablets, Voodoo Juice Plus (made for commercial growers market; I break tablets up into appropriate smaller doses of powder), that combines their 3 separate beneficial liquid microbe products (Voodoo Juice, Piranha, Tarantula) and Tribus/Impello, another broad-spectrum product. And contrary to most instructions, I regularly supplement with microbes, such as after initial dosing give low doses once/week, to keep reinoculating the coco/roots with pure cultures.