I visited the GlenDronach distillery with my father in October 2009 and unfortunately their visitors center was closed due to flooding, so they waived the usual $5 charge for tours. The tour included their old floor maltings (though they no longer use them) and an explaination of their rather complicated history, which includes yet another Grant family and William Teacher and Sons that of course produces the Teacher's Highland Cream blend. The most recent chapter was the acquisition by the same company that owns the Ben Riach distillery and the distillery shop carried malts from both distilleries. Unlike nearly all distilleries today, GlenDronach matures it's whisky exclusively in sherry casks (no bourbon casks here). At the end of the tour we tasted the 12 year old Original and I bought a bottle of the 15 year old Revival.