I'm not too sure about E2 version, but I know PGC offers 3 unique shimms, one for TM original grips and the other two for Hogue brand rubber and wood grips. I don't know if Altamond grips would fit but I assume so. Expect a little bit of dremmel work to get them to fit right.
Found this if your still looking
http://www2.wgcshop.com/wgc2008/main...&view_choice=a