I need to ask to be sure:
1) Model A standing at edge of HT2 terrain directly bellow is model B with Ml reach 2" = model B can attack model A
2) Model A standing at 1/2" away from edge of HT2 terrain directly bellow is model B with Ml reach 3" = model B can attack model A
3) Model A standing at 1/2" away from edge of HT2 terrain directly bellow is model B with Ml reach 2" = model B can't attack model A
4) Model A standing at edge of HT2 terrain directly bellow is model B (HT2). Model A has a Ml reach 1" = Model A can't attack model B
?