I have not tasted 75 Montrose or Ducru recently, but M. Broadbent has.
Here is part of what he had to say.

"Ch Ducru-Beaucaillou Many notes. Good colour; classic cedary nose;
fruit and extract almost succeeding in masking its silky-leather tannin.
Last tasted June 1999." He rated it 3-star out of 5-star.

"Ch Montrose Understandably hard in cask and, as usual, slow to develop.
Classic. Lovely flavour and texture. Spicey. Silky tannins and slightly
astringent. This has a future." He rated it ****(*), meanig he thought t
was 4-star but might improve with time to 5-star. No last tasting date
was given, but he published the book with this information in 2002.

I have 5 bottles of the 75 Montrose that have been stored properly since
release. I might open one within the next 5 years. However, this wine
likely would be quite good drinking now if you do not mind a bit more
tannin than it will have when fully mature. If it has been stored under
conditions warmer than ideal, then it likely is fully ready and you
should taste a bottle soon to make certain that it is not starting to
decline.

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