It's the stock chain guard on my Cannondale Quick CX. I still use trouser bands to avoid contact with grease.
My biggest concern is rain because I didn't install my mudguards yet, and last few weeks have been awefully wet
As for the riding, no particular issue but when I bought my shooting derby at Septième Largeur, the owner of the brand inspected my Eaton and its sole and saw some marks on the danite (I've gripping pedals). He told me to pedal with the front rather than middle foot because otherwise you can break the shank. Ever since, I am fighting with my weird pedaling