With L3DT Pro for Torque 2.7 and 2.7.0.15 when zoomed in on the map the grid does not line up with the pixels/cells for the brushes making it rather hard to accurately paint things. The settings on the map are 2048x2048 w/ Horiz scale of 1 HF/DM ratio 16
Here are some pics
This second one where the brush cursor is where I actually clicked and the square to the right is where it placed the altitude change