Should DRD modeler be top down or bottom up?


If I model a DRD diagram at the moment, the default behaviour of the modeler is bottom up. What I mean is I start with a decision table and if I use the context menu to create a new linked decision table, the direction of the arrow assumes I am modelling bottom up.

My natural style would be to model top down and thus Id prefer the default behaviour to presume I am modelling top down.

Hence what would others prefer? Is there critical mass to change the default behaviour?