Ask people who's opinion you trust. Ask the people who you are going to be selling. Considering you got the cold shoulder doing this maybe you are talking to t

Ask people who's opinion you trust. Ask the people who you are going to be selling. Considering you got the cold shoulder doing this maybe you are talking to the wrong people... maybe you should be targeting the technical portion of said company.. If you are going for managers/owners I'd go full on pitch quick and easy. Make an example product.