that's normal. The whole concept of a shock is to dampen the spring oscillations. (basically keep the car from bouncing on the spring) so they slow down the forces of the springs acting on them. Konis have a lot of rebound damping, so it take more force to extend them than to compress them. That's why it takes so long for them to rebound on their own.
when your shocks can be extended easily, they are blown
