Yesterday I bought some new wipers ( the last ones having gone the distance from new...6 years, longer, it seems, than some on here would expect!!!!) Champion EZ click Aerovantage. Took the old ones off and....mystery time. The new clip is not like the old one and the on the drivers side it seems you get a choice of two marked CH31 and CH24 on the diagrams (and another tiny piece of plastic that seems to have no purpose) and the already mentioned little diagrams printed on the back are as clear as mud. After a lot of fiddling I went with the clip already on the arm which is the same as the one (and only) on the new passenger side wiper It "seemed" to click on ok and the passenger one clicked on more positively. Have I got this right? So far both work ok, no sign of them flying off as I have repeatedly had them on fast wipe and it rained quite a bit yesterday. Can anyone put my mind at rest as I have a long M6 journey coming up.

Always a bit tricky, sound like you've done it ok, basically if you can't slide them down off the arm again once they have clicked then they're on and secure.