Just like learning to do anything well, you must practice lots. Learning to use a shortreed isn't easy, but it's worth it. Sr's[shortreeds] are much more versitile than flutes or conventional calls.Here's some links to the tips I've used to help me along;
http://www.takeem.com/goose_calling.htm
http://www.refugeforums.com/refuge/s...hreadid=195648
http://www.refugeforums.com/refuge/s...hreadid=194123
http://www.refugeforums.com/refuge/s...hreadid=184747
I hope these links help you out, keep practicing, you'll get it.