That angle really doesnt tell me too much unfortunately...
Also, i just tried compressing a brand new bilstein shock for my car (rears, but that shouldnt matter). They do have a tendacy to expand once compressed, albeit without a huge amount of force - meaning bad rear ones might cause a little drop at the rear. If the car is on the springs, it doesnt take much force to move it an inch or so up.
I would still suggest that you pull the front springs if you have the tools to do so and check that they are original, if not swap the new ones you have in, then you can go forward from there.