Centuries ago these distinct flavor notes were achieved by shipping Madeira barrels through tropical climates on lengthy voyages. But as demand for Madeira increased, producers were challenged to find a faster way of supplying their customers and as a consequence, the "estufagem" system was invented.
But that doesn’t mean Crown Royal whisky = rye. Unlike U.S. distillers who combine the grains before mashing them, Canadian distillers mash the grains individually and then combine them as separate whiskies. This means that Canadian blended whisky may contain zero, some, or a 50%+ rye.
A good place to get ideas of new cigars to add to your collections is by checking out cigar reviews and ratings. Good detailed reviews can help you sort through the vast array of cigar choices to find selections you enjoy. Ultimately, you may not agree with the reviews or even end up detecting other flavors than what the reviewer listed.