I found on my 107 (old top, moderately scratched windows, etc.) that the top never looked better than when I left it up with the windows closed for several hours on a hot summer day (eg, 95F or so). For the ultimate, one would wet it down well first. Anticipating a new top next Spring after winter layup.

__________________
Craig Bethune

'97 SL500, 40th anniversary edition

'04 Olds Bravada (SWMBO's)
'06 Lexus ES330
'89 560SL (sold)


SL--Anything else is just a Mercedes.
(Kudos to whoever said it first)