The only reason shocks need to be mounted the way they were designed is for clearance or mounting style. That being said, if clearance is the problem and you're willing to install new shock mounts, then by all means go ahead and flip em.
Not correct. It entirely depends on the shock. Some shocks can, some can't. (Well, you can run it upsidedown, I did. After alittle time, it was like not having a shock on at all.) Flipped it back around.. Shocked worked.
These were the ES 3000