If the top connection is a nut over the shock shaft (like a strut) then it probably won't make too much difference because the angular change of the shaft as the suspension moves between the stops is so small. Is this the thrust of your question?
Typical sleeve bushings, such as those used for the various suspension control arms, should always be tightened/torqued at normal ride height.
P.S. Today is "car swap" day - place the '91 MR2 in storage and take the '88 190E 2.6 five-speed out of storage for yeoman service in our nasty Southern CA winters. The MR2 has never been on a wet road!
Last edited by Duke2.6; 12-09-2003 at 11:23 AM.