Rear shock travel?

Has anyone measured the full shock travel requirement?
To explain better when you remove a rear coil spring. Then push up on the lower control arm to the bump stop. This will tell you the full compression requirement needed. This information is needed to prevent internal shock impact/damage. Then check the full extension. For the same reason. When I did my lift I didn't think of doing this. If you are concerned about the extension damage maybe put limits strap on to prevent over travel. So if there is anyone in the future having a lift installed. This information could help others in selecting a correct shock.