I was thinking while making an A340 that this game could use a mix between a piston and shock where when you extend it it's not completely rigid can act as air filled suspension and when put under extreme pressure like a heavy airliner sets down slower then normal shocks. This would help as making airliner bogies is really difficult for me as either the normal shocks aren't versatile enough or when I try making the bogies angle upwards for landings they have no suspension and make landings rather poor. Also if we could have a small gimble joint to put on the ends of normal shocks and piston this could open up many new possibilites in tight spaces where normal hinges would not fit. If these could be added I'm sure it would help creating many new creations a lot easier and have better systems all around!