The best "spring loaded snipper things" are made by Heritage Cutlery. They make scissors just for rag quilts. They are kind of expensive, $30 and up, depending on where you by them. But the difference they make in cutting rag quilt seams is amazing! It is like cutting melted butter with a hot knife. They will save your hands!
Here is a link to them:
http://www.nancysnotions.com/product...ring+action.do