This is what I came up with to prevent the rear table
from flopping around when in any position but fully
lowered.  Not as elegant as Loren's solution that has
gotten recent press, but very easy and easily
reversible in case I want to try the internal dowel.

http://picasaweb.google.com/bike2vcu/TableMod02/photo#5081242097264314626

Use 1 1/2" PVC cut so it snugly fits between lower
plate and the upper sleeve, about 21 inches long.  I
can measure again for anyone who's interested.  Sleeve
ID is slightly larger than the table leg OD so there's
some looseness, so I used a piece of thin plastic
(like a strip of plastic cutting board) rolled and
inserted into the PVC.  Snug fit of the table leg
within this acts as a brake or damper on the table
leg.

Stephen

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