Sliders.
Is it uncool to wear brand new unscuffed sliders when, truthfully, they're not exactly likely to get worn out from overuse? Yet.
(ie, your leathers have bugs and flies on the /back/ of them, as the insects speed into /you/...)
Or, what about sticking them on a linisher for 30secs, to get them scuffed in, and then *ahem* say, feigning an injury acquired in the Fast group on a trackday which prevent you from getting your knee down when other people are around...
Or, are new sliders ok providing you're actually /trying/ to get your knee down and might actually succeed?
PS:
SM- Sorry to hear your bad news

At the risk of sounding cliched, hope you feel better soon.