Atomic Ski Bindings - 4.12 or 6.14 which is better for me?

I'm not sure which bindings to use.

I am finally trading in my old strait skis for some shaped skis. My
old skis were a set of 205 cm racing slalom Elans with Marker Race
bindings which I had set at 9 or 10 din setting.

I am looking to mount up my new Atomic Beta Race 9'16 Slalom Skis.
180cm

I weigh 175 pounds and an expert level aggressive skier.

I realize that the 4.12 Atomic bindings or the 6.14 will work just
fine. Price is not really an issue and being an "guy", I'd generally
just choose the bigger badder bindings. However, I am wondering if
the 6.12s will work just as well and possibly have the advantage of
being a bit lighter.

I like to have my dins set about in the middle of the range and
someone told me that the more modern bindings can be set a little
lower than you are used to and hold you in just as well.

Has anyone compared these two sets of bindings?