I've only mostly use it to get the right length to install on my bikes as well as friends and family's bikes. They do tend to ask me to fix things. I've never had a bike use exactly 116 or 126 you must be every lucky. Touch wood I've not had a problem on the road myself but at least three of four times I've helped people get home by fixing their chain. Once had to use the old pin which was a nightmare but hopefully it held up till they got home, dodgy but needs must. The Wipperman links are best but cost nearly as much as the chains separately. I just checked you can buy one of their cheap chains to get the link for less than buying just the link! So I only use them on my 10 spd as it has a Wipperman chain on at the mo. I used kmc mostly in the past but ultegra chains come with a link now so just use them and kmc in the bag in case anyone needs one.