Gotcha.
The one thing about buying from a brand like Shure is they have been around a while and they will be around for a while longer. They have reason to backup their products if they break. I haven't heard the 425s, I have 215s as backups and they are comfortable. If the same cable is on the 215s as the 425s (i think it is), i'd say my only complaint is they are abit too beefy.
If I were looking for new IEMs, and they were universal IEMS, I'd look at campfire audio because they are badass or I'd look at getting wireless ones for on the go.