With the IB's it is all a matter of is selecting the casks and that's what makes a IB. They depend on the person who is selecting the casks for the IB. Usually it's one of the IB staff and if has had a bad hair day or a quarrel with his wife the night before, you might notice that in his selection ( the last shouldn't be taken to serious, because they are all professionals and they don't let these matters interfere their work ).
If the people behind IB's make good selection, then they will notice that in their sales. If you look at people from G&M, Cadenhead, Signatory, Murray McDavid, Hartbrothers etc they let us taste some whiskies from renowned distilleries you could probably never taste, if it wasn't for them. I think that the IB's play a very important role in the whisky world, because some stuff will never be bottled by the distillery and probably would end up in a blend ( what a waste ).
I believe that every person here on this forum has his or hers own preferences regarding the IB's. I believe that some of you here walk a way with the SMWS bottles, to be honest I never got the chance to taste one of their editions simply because I'm not a member. My personal prferences of IB's are Cadenhead, Signatory, Hart Brothers to name but a few. The nicest thing of IB's is that you let them all select a Rosebank you'll get different Rosebank whiskies. One will probably select multiple casks and blend them, while the other select some casks and bottle them by the cask
The only thing now is, that some distilleries got to their senses and realize now that there is a market for single cask bottles and other special vintages etc. So they preserve now a lot of their older and special stock. What happens is that these special OB's are becoming more expensiver then the IB's will ask for. Anotherthing is that in the end a lot of IB's will suffer because they are not able to get their hands on older and reasonable stock. So in order to secure their stock they start to buy distilleries and if I'm correct G&M was the first IB to buy a distillery, the Benromach to be exactly and others slowly followed.
No, I'm glad that I had the chance meet some IB's and if it wasn't for them we couldn't taste that exceptional Rosebank or that beautiful Caol Ila or this rare Macallan wich probably endend up in the FG blend anyway. So a big HURRAY is on its place I guess don't you agree?
For what's it worth my words about the IB's on what eightball started in the beginning of this topic,