I have found a trackball to be even better than a vertical mouse. Only your thumb moves.
Otherwise it's also Ergodox for me. I switched to Colemak at the same time, also have a programming layer ()[]{} etc. In addition I have a layer for cursornavigation and selection, word wise/char wise/start&ens of line/page wise, comparable to vim mode, but using the default shortcuts for Windows and macos (with the help of Karabiner)
It took a few weeks to get up to speed but I couldn't be happier.
Otherwise it's also Ergodox for me. I switched to Colemak at the same time, also have a programming layer ()[]{} etc. In addition I have a layer for cursornavigation and selection, word wise/char wise/start&ens of line/page wise, comparable to vim mode, but using the default shortcuts for Windows and macos (with the help of Karabiner)
It took a few weeks to get up to speed but I couldn't be happier.