Looking at one og the forums I discovered Walkera had made a new version of the walkrea 5#6 called 5G6 smiley It seems to basicaly the same heicopter with a few design changes. Link to 5G6 on the walkera homepage: http://www.walkera.com/en1/particular.jsp?pn=Z25G60103
It seems to weight 57g whereas the 5#6 only weights 55g. This probably isn’t too bad but 2g is after all almost 4% weight increase.