when youre floating next to them, and their speed isnt constant, most likely whats happening is that the client interpolates position, and then recieves the next position, and plots it, causing a small jump this is most noticable at high speeds close to a high gravity wormhole additionally under high lag, all players drift in a straight line until they bounce off a wall with no speed loss also, ive recently been planning to make a fake pilot module, so that might help with something, maybe