I work with a group that if it is newer than 1940 technology it just will not work. Or so they believe. 2 years ago we bought a Burndy Y644M Dieless crimper they seem to like it on 480 volt work they were not sure about it at first but they did come around. They absolutly refuse to use it on 2400 and 13.2KV work. Their argument is that it makes a triangular shaped crimp with rounded corners and indented base it would create uneven stress around the lug or butt splice and cause the splice or termination to fail.I talked to the Burndy rep and he said their conserns are unwaranted.What is your all experinces with dieless crimpers on HV work. THANKS HYPRESS