I have an older Vario that I updated to the metal portafilter holder, a new control panel with the letter and numbers on it, in addition to installing the shims to keep the levers on the selected notches.
I'm still having an issue with the macro lever when grinding espresso. It wants to ratchet down slightly, not completely out of the #2 position, but far enough down that it creates unpredictable grinding quality. It does have the shims installed, per Baratza's video. I added a new control panel afterwards, mainly to get the numbers/letters on the graduations, but also in hopes that a new one would hold the ratchet tighter.
If the lever is held in place, it grinds perfectly well.
Anyone fix this? Was wondering if new lever(s) would resolve it? Emailed Baratza too and will get their opinion.