John Willett
Veteran
Many pro mixers including myself, find limited use for a long shotgun, though it's nice to have when needed. If one can only afford one or two mics, I would recommend: 1. a short shotgun. 2. a hyper cardioid for interiors. 3. additional funds would be wisly spent on lavs, unless for a series special application.
Long guns are maily used for sport - eg: the sound of a "bat" hitting a ball - lile: cricket, golf, tennis, etc. and other sports where you need to get sound from the touchline.