3ds Max :: Bezier Float And UV Tiling?

controlling a bitmap's tiling amount with a Bezier Float node in the slate material editor.

If I link a bezier float controller to the tile size of a normal bitmap (non real-world scale) it works as expected, i.e. if I set it to 4, then the bitmap tiles 4 times.

However if I link the float controller to a bitmap set to real-world scale, then it seems to work in reverse. i.e. if I set the float controller to 5, then the UV size appears as 0.005m, and if I set the bezier float controller to 0.005, then the UV scale size is set to 5.0m.

It seams as though in the second example MAX is taking the bezier float value, using it as a tile amount, then just for display purposes it converts it to a real-world size. I can work with it now that I know what it is doing, but it is a little unintuitive.