Yeah, Ive had a few of these bitsa blends over the last few years. Without exception, they have all tasted pretty good, with the 2009 XMAS blend being a knockout.
They are always a pre-roast blend where I throw 2, 3 or 4 beans from the end of bags together.
Same sort of problem though. Some of the beans may not come around again, some will probably not taste the same and with me, I dont usually apply much science to these roasts.
Drinking one this week in fact.
Finished off bags of Peru Grace Estate and Columbian Volcan Galeras and didnt have enough for a full batch, so put some Brazil in for a base.
+ 6 days at present and enjoying greatly. Im sure I can throw similar stuff together again, but whether it replicates the taste, who knows.
Great fun though!