Can I just slide the new Fischer Z12 "GW" binding into the old rails on my Fischer Z12 (non GW)?

[Magikarp]

I have a Fischer ski with the older Z12 bindings that are not GW compatible. I see that there is a new one that is.

I'm slowly upgrading my quiver to be all GW compatible because it seems more and more boots seem to be GW only these days. Can I buy a the new Z12 GW into the old rails when the time comes for a new boot? If not, is there a GW binding that could work? I prefer not to redrill the ski if possible.

Below are photos of the 2 (left is old, right is the new GW version)

 

[Magikarp]

Paging @Philpug, binding expert

 

[Henry]

Head/Tyrolia makes the bindings for the Fischer label. Those sure look like the PRD 12 bindings, now the PRD 12 GW. I think they all fit the Power Rail; wait for confirmation of this. If so, buy these with any brand label...Head, Tyrolia, Fischer, Elan, etc.
https://www.tyrolia.com/en_US/bindings/on-piste/powerrail.html

 

[Philpug]

Yes

 

[Magikarp]

Yes

Thanks! Are the PRD 12 ones from Head, Tyrolia, Fischer, Elan, etc. all the same? How about the Freeflex Demo 14 GW? It's reassuring that I can upgrade with all these options when the time comes.