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I had air bags in my previous TV (many years ago) and it got an air leak. I also got tired of its "air up" and "air down" changes. For my last TV that uses Leaf spring, I installed Timbren SES units. They worked so great, I got Timbren SES units in my 2nd TV (which uses Coil Springs). Been so pleased with this low cost "install it and leave it" Timbren SES product, my future TV will have Timbrens SES units as well. Timbrens SES unit are no air leak, no airing up, no airing down and they are less cost than air bags.
As a suggestion, do investigate timbrens SES units. Works for me...