Today I'm getting a new clear glass delivered. Clear is a testy subject. Some of it gets really scummy or bubbly or cloudy. Some of the stuff that stays clear has weird reactions with high-silver-content glass. Some of it is super stiff (meaning it takes a long time to melt). There are hundreds of "What's the best clear?" threads on the glass forums, and they always end up in a huge argument.
Also, I switched to working middle of mandrel and my encasing has GREATLY improved. Yeah!