Cast aluminum transmission pan - Anyone run one?

I run a deep cast pan on my dart and it does seal up a lot better then the old steel type. The thicker flange doesn't bend like the steel ones do. I also run a gasket off of a early 2002 dodge diesel automatic transmission. It is the same as a 727 but it has a rubber o ring molded into the plastic gasket and seal up a lot better then a regular rubber or cork gasket and they are reuseable.