Jim, I never thought about the basin trap contributing as a sloshing oscillating mechanism but I guess there is a precedent:

The dipping bird !!!

![dippingBird](http://i846.photobucket.com/albums/ab27/Ausdude_2009/dipping-birdsimpsons.jpg)


Dara, whatever results I get are built on the work of others. There is a saying that we stand on the shoulders of giants. If it wasn't for the constraints that various findings put forth, I would be really shooting in the dark. These are the boundary conditions that guide research.