the 1.0's are the one's that dont actuate very well....the issue with the 2.0 is the stiff spring....the 2.0 plastics work Awesome...the way they molded the 2 peices allows them to work like they should...the 1.0's had dull flat edge's that didnt like to "actuate" very well....so imo your going backwards....and im confused as to why bill would send you this way.