Quote Originally Posted by MrBragg View Post
If it's at all helpful, I could run some calculations for you when my computer is open, so just let me know.
If you really wanted to, I'd be interested to see what happened with Earth topography (max elevation 6300 m on this file) and standard settings (300 ppm etc) at t85 with 1 m initial glacial cover run for 50-100 years, to see if it fixes some of the issues at t42

Click image for larger version. 

Name:	earthscale.png 
Views:	19 
Size:	106.8 KB 
ID:	135001