Nice tutorial. Interesting and informative for someone that usually only uses two overheads (sometimes only one), a kick mic, and one mic between the snare and HH.
I can see it's going to take a while for me to get to grips with the Drum Replacer and a workflow for it.
I don't think it's something I will use a lot (I could be wrong) but it's going to be awesome when it is.