The thing about hornpipes is that there is a big range within the category. "Navvie On the Line" makes an excellent clog hornpipe as it is comfortable to play at a very steady pace. Proudlock's isn't so good for clogging but fits the Canadian Barn Dance well, as does Roxburgh Castle. Lift Roxburgh up a tad and it makes an excellent rant. Most people have heard the Sailor's Hornpipe played as a rant a last night of the Proms stuff. It's all a matter of comfort and enjoyment. In a rant dancers are airborne for the "ma" bit of "tomato soup" this sets narrow limits on the range of tempos suitable for the dance. It has to be a bit faster than a Canadian Barn Dance. Experienced dancers like the rants with a hornpipe lift but played at a speed which uses gravity to advantage a much easier said than done.
As aye Anthony -- To get on or off this list see list information at http://www.cs.dartmouth.edu/~wbc/lute-admin/index.html
