'radWood' fixed.  From 97afa26.  Disregard last 4 commits.  Error introduced between d24a9ef and f2fdf08.  I there added 'newpos', delaying the actual stepping of 'position', but was still using 'position' in the collision evalutation.
Fixed 'radWood' error.  Was introduced between d24a9ef and f2fdf08, when I added 'newpos'.  In the collision evaluation I was still using 'position', but needed to now use 'newpos', since 'position' is now updated later.  This explains why 'radWood' has had incorrect results since those commits.