I was wondering what normal wear and tear on the saddles of my strat would look like. I was playing today and I noticed that it buzzed when I hit certain notes on the high E string, so I slacked the string and noticed that there was a groove in the saddle where the string had scratched in. Is this normal wear and tear? Or should I be looking to fix it?
My Gear:

MIM Fat Strat
Ibanez V70CE
Epiphone S-210
Danelectro '59 Factory Spec Reissue
Godin 5th Ave Kingpin

Fender Hot Rod Deluxe (x2)
Crybaby 535Q Wah
Marshall Regenerator
EHX Little Big Muff
BBE "Supa-Charger" Power Supply