The ride still sucks with the H's, the difference is marginal.

I think the reason is the W126 is a late 70's design, a very good one but still a 30 year old design. It isn't fair to expect it to ride like a 2000+my S, 7 series, XJ8 ect.

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2016 Corvette Stingray 2LT
1969 280SE
2023 Ram 1500
2007 Tiara 3200