The chap who was servicing my spare shock today told me I shouldn't use a ziptie, or anything else, for that matter, as a travel indicator on my shock, as the dirt gets trapped in it and creates striations on the barrel which encourage oil loss. Fancy that. Anyone think they know otherwise? I had a look at my other shock and the rubber ring doesn't seem to have left any marks, but I can see how a ziptie might be more problematic.

Maybe the dude has a point, took them off and there is dirt trapped in the ridges.

and they weigh 2 grams.