charlano wrote:1. Now the question that I have is how can a company sell a product under the same name, but not having the same abv?
2. Is there a huge difference between the 43abv and the 40abv expression?
1. Easily, depending on the particular market or distribution network. This scenario is not at all an uncommon one.
2. I can't personally say, as I've never tasted the 43%ABV 10YO. However, I DO generally prefer the slightly higher proof incarnations of any malt when that option is available.
That said, there's nothing wrong with the 40%ABV Laphroaig 10YO. And recent issues appear to be back to their Islay 'best' (there WAS some inconsistency apparent years ago).