Your comment here has totally won me over to not worry about Rb. I was up late wondering why it wasn’t tested on my Triton ICPs, then it wasn’t added to my Captiv8 solution, even though they had a recommended daily dose listed on their spreadsheets. Further complicating my thoughts, it’s a listed ingredient on the calcium component of my ESV B-Ionic 2-part bottle (along with Li, which I always have way too much). So, I read your article on what elements to dose, then ended up here, and Eureka!
Ps., why would ESV put Li in their 2-part solution, that stuff is like plastic, it’s in everything already, lol