The ones that were on the I/S were the Redeye ones. I don't know how long they had been on but they looked really good. The ones that BonS included look like they'll last a while.

The ones I made for the standard were with the thick reinforced hose with screws for caps. I'm going to synch it next, I'll see how they are. They've only been in a year though, and hardly any miles on them.