Have to remove the pad again, bump in the middle came back. After thinking about it, when I put the pad on, and install the nuts hand tight, pad lies flat. After tightening them up some the bump comes back. I think the nuts on the end are pulling the ends in causing the center to buckle. Hopefully I can pull it off, straighten it out, and put in on hand tight, and then only tighten it a half turn more. And maybe it won't buckle.
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