The first one from Mikes had about 3 lb pull - I tried to sqaush the clip using the preffered method of putting a piece of 3mm flat bar in the U shape bit and compressing the clip in a vice - I could not get more that about 4 lb. I tried every possible way to crunch that clip with no success and in the end I snapped it. GeoffXS (ausie Mikes) sent another one to me and it is the same, about 3 lb pull - I have no idea what I will do to increase the tension on this one. There are lots of people on this forum that say "just give the U shape bit a bit of a squeeze in a vice and you will end up with 8 lb - without being rude, I am starting to doubt that they do (do they actually measure it).
I had one the other day ( at the place I volunteer) - brand new - 3 lb pull - I suggested to the mechanic that we try to squeeze it a bit - he said dont bother, just fit it - I fitted it and its useless.
I wish somebody could show me how to acheive the 6lb (recommended) or someone invent a new clip.
Regards Ray.