Yes, tinkering's the way to go. Almost 2yrs. Some groups, like Latouria dendrobiums, Neofinetia and its hybrids, and Onc. hybrids, I use as sole mix. For Dendrochilum, paphs, phrags, phals, some angaecums, and Coryanthes, I use it as semi-hydro per Ray Barkalow. Thay take readily to it. Your...