I also set reserve to zero. Remembering which reserve altitude is set for the glide to turnpoint, glide to alternates, glide to finish, and the two amoebas (clearnav) is too much for me. So I set them all to zero. If I want to arrive at 1000', I don't proceed unless it says 1000' (plus a decent macCready). The one exception is the finish -- if it's a contest finish and the arrival height is 1000' MSL, then I set that to 1000' MSL, which is the logical equivalent of zero.

John Cochrane BB