Stabilizer jacks - How much is too much?

I've read most of the posts about trying to get rid of the "wiggle" in your rig.Many discuss rear stabilizer jacks as some part of the solution, but nobody seems to have answered the question, "How much weight should I lift with the rear stabilizer jack?" I normally snug it down and add maybe a half turn more. Not scientific for sure. I've upgraded the jacks from the OEM and they are capable of lifting the entire rear of the rig. Any suggestions?

Thanks,
David