? for Motowheels or anyone

I got this Basket from Motowheels. Its their 7000 series Billet Alum. At the same time I got a Barnett clutch, already running a Evo Slave. I have put maybe 350 miles on the bike with the new clutch. When I first got the bike back together, it was hard shifting. I did have to file the Barnett plate tabs down to fit the basket. I talked to Ken at Evoluzione, thinking it was a slave/air in the line problem. Finally the shifting loosened up after maybe 50 miles. I never slipped the clutch or burned it with poor shifting etc... Well pulling the clutch apart, for my 853 kit, I saw the plates were burned bad and had thickness varing by a few mils. Barnett being in SoCal I talked to their tech and went to their shop and they inspected my clutch and replaced it on the spot. Well getting my basket cleaned up, it had quite a bit of disc material in it and I noticed these grove marks at 12, 4 and 8 o'clock position in the basket, the plates groved the basket more than the tabs on the friction discs hitting the basket. I am just wondering if this is normal? Could this have caused stiction to burn the discs? I just dont want to burn up another clutch, with normal street/canyon riding.