This looks great Ippo! I'm completely in love with the concept. The perks are for Kerbals, like the default Courage and Stupidity? So it will be randomly generated at the Astronaut Academy, I'm guessing. The idea of sending a dedicated technician on-board is fantastic. Also your should make it so the chances of a Kerbal being proficient in both Maintenance and Inspection is low. Requires more of a balancing act. Also I have an idea on how to treat unmanned probes more fairly. They can't be repaired, because all the Kerbals are millions of km away and it would be cheaper to send a new satellite than send a repair crew. It could be assumed most probes are one of a kind and have a much higher degree of tolerance compared to manned spacecraft like the Shuttle and Apollo. Also probes can't really take advantage of the Inspection boost. Its hard to inspect a probe on top of a rocket on the launchpad, and sending them to an orbital station for Inspection is almost laughable. If its technically possible, could the mod check if Kerbals are onboard the vessel at flight screen, and if not, assume the craft is an unmanned probe, and increase the integrity of all the probes parts. This way probes get some of the advantages, without becoming a less optimal tool in the game (as they are in vanilla). I actually downloaded your mod to use with probes! Two antennas on my craft. Disaster strikes and the long range antenna capable of reaching Kerbin breaks near Jool. Dead in the water, my low gain antenna attempts to make sporadic contact with the Jool communication constellation. Contact fades in and out as the satellites designed for Laythe communication ping back commands from the probe and Kerbin. I love these scenarios! PLEASE make antennas (for use in RemoteTech) and solar panels failable!