I have several questions about fluorocarbon tippet materials:

1. Several companies (Orvis, Seguar, Rio) are now selling premium fluorocarbon tippet materials at a price somewhat higher than their original fluoro tippet. What is the difference between the original fluro and the new fluoro? is it worth buying the premium fluoro?

2. Given the high price of fluorocarbon tippet material, I have wondered if one can buy fluorocarbon spinning line in bulk to use as tippet? Does anyone do this? What brands have you used?

3. Because of its higher specific gravity, I have avoided using fluorocarbon when fishing dry flies, fearing that the tippet might drag the dry fly down. Is this misguided?

Thanks