Exactly.... it takes a little more force to start to close it until 1/2 way ...That's what I would have thought. Both being fiberglass, I would assume they are within +/- 10 lbs of each other.
Not sure why they think the shocks would need to be different. if it holds it open, it does it's job. Might take a slight bit more force to start to close the hood, but once it is past the 1/2 way point it should be no different.