Rather interesting, although the dual-skill recoveries get weird since it means that one skill can be slightly ahead of another (My leverage is 0.02 behind because I'd started it slightly before I got the leverage ability but I then stopped it to progress in other stuff). The Mechanical Right Arm should probably also still provide a Searching bonus, since I"m guessing the metal detector still works in it :P
Sorry about the OCD trigger.
The MRA is part of the hidden tutorial that teaches you that you can lose a skill if you craft it away. That would have been more significant late-game, but the challenge of balancing while preventing a locked game was more than I could handle for this short game. So it ended up less of a puzzle than I intended, but no one should ever be locked out by missing skills.
Thanks for playing! I'll be more careful with balance in the future.