David wrote:

> John, there is one consistent set of typos in your formulas for $X(\ell,r,y,\tau)$ -- you've left out the second parameter $r$. Can you edit them, so we can make this thread look nice?

I've attempted to fix this everywhere; I've deleted your comment about this, and I will delete this one if seems all my $X(\ell,y,\tau)$s have been successfully corrected to $X(\ell,r,y,\tau)$'s. Thanks!