Hi there! For the longest time, I've had trouble settling on a tech tree to use for my KSP playthroughs. TETRIX, Kiwi, Probes before Crew, and even just the standard Community Tech Tree are all good, but they each had some sort of issue or thing that I just didn't like. After sometime trying to change it for personal use through patching, I've instead decided to just go all the way and create my own custom tech tree, the Skyhawk Science System. Behold! (Hopefully the image displays pro