Sorry for not having posted sooner.
I did get a chance to try out the new grips at the range weekend before last. The G10s are just slightly thinner (side to side) and shorter (front to back) than the original grips, plus I just installed a short trigger.
The 228 really fits my hand perfectly now. I found the G10s to provide a very secure grip while shooting, especially the back strap, without feeling too sharp or uncomfortable. All in all, I'm really happy with them and glad I bought them.
G26 / G19 / G30