Informal Tasting

[BamaWSO]

Ladies and Gentlemen,

I have been following this website for over a year and have finally had a good reason to post.

I plan on hosting a Scotch tasting tomorrow evening that will serve a dual purpose:
1) Introduce a few of my friends to different types of Scotch and hopefully teach a little about the differences (just for reference, this is the equivalent of a high school senior teaching 8th grade science, but the knowledge should suffice).
2) Finish off all my Scotch before moving back to America (currently I live in Japan).

Anyway, I plan on bringing Johnny Walker Black, Glenlivet 18, Glenlivet 16 Nadurra, Tomatin 12 (all <1/2 full), and a full bottle of Dewars White Label. I plan on the following order for tastings.

Johnny Black
Dewars White
Tomatin 12
Glenlivet 18
Glenlivet 16 Nadurra
Tomatin 12 (to again compare a decent entry scotch to some of the more refined expressions)
Knob Creek bourbon (for comparison only)

Of course, others may bring a few others, but has anyone hosted tastings before or has any advice for how to make this a smooth experience (i.e. ideal snacks, time between drinks - I am currently looking at about five minutes in between).

Thanks in advance for any help I get!