I just completed a new german canvas top on my 1994 e320 cabriolet by a professional top installer..looks great, fits great ..but.. installer told me it takes from 2 days to two months to stretch out. Presently it needs a little muscle help the one time after I dropped it and raised it. Also, the small flat plates 3inch square in front of the rear deck convertible lid did not lie flat after I dropped the top..Has anyone had experience with a new top on the e320 cabriolet? Any comments would be helpful..