I just wanted to pass on this bit of cruel info to you.
A few gun shops here in germany offer a kit, to put the new E2 (ergonomical grips) from the P226 E2 on any P226 Classic.
Here the link to the shop (sorry it`s in german):
Triebel Online Shop
In order to be able to mount this kit onto a classic P226, the shorter hammer spring, that fits in the polymer thing at the end of the hammer strut. P226ers, that have the shorter spring already, can use it.
Here is a pic of a P226, that has got the E2 grips on it already:
As far as I have heard, this kit is not available in the US yet.
I ordered the kit for me and will post some pics when I put the grips on.