Remap the mode hotkey to something other than M. Rei's Minimap, or at least the version in the current FTB pack, prevents any other mod from using M as a hotkey.
Remap the mode hotkey to something other than M. Rei's Minimap, or at least the version in the current FTB pack, prevents any other mod from using M as a hotkey.
This is what I did, and it works fine. I remapped the "switch mode" key to N, then once you're holding the wrench in your hand, hold N and right-click to switch the mode.