1. Studies on heavy quark scheme

2. Comparison of central fit plus total uncertainties to variation of heavy quark scheme: using massive variable flavour number scheme of Thorne. LEFT OLD RIGHT NEW New/Old very similar.

3. Comparison of central fit plus total uncertainties to variation of heavy quark scheme: using massive variable flavour number scheme of Thorne. LEFT OLD RIGHT NEW New/Old very similar except for very high-x D

4. These plots are both new But on the LEFT using Thorne’s 2007 heavy quark scheme On the right using his 2008 heavy quark scheme Thorne says these are both legitimate choices- But 2008 is closer to ACOT. “008 also has better χ2 473..lower than my standard 476

5. These plots are both new But on the LEFT using Thorne’s 2007 heavy quark scheme On the right using his 2008 heavy quark scheme Thorne says these are both legitimate choices- But 2008 is closer to ACOT. “008 also has better χ2 473..lower than my standard 476

6. These plots are both new But on the LEFT using Thorne’s 2007 heavy quark scheme On the right using his 2008 heavy quark scheme Thorne says these are both legitimate choices- But 2008 is closer to ACOT. “008 also has better χ2 473..lower than my standard 476