I haven't been able to find any tournament document for L5R that specifically states some of the more procedural rules for official tournaments/running a tournament, so if one exists then I just missed it. Long story short, I'm wondering if it's permissible in official FFG sanctioned tournaments to use clear sleeves with deck backers. I've heard that just clear sleeves are a no-go due to the possibility of marked cards (which I'm totally understanding of despite really liking the new card back art!).
For anyone wondering what I'm talking about, I've attached a picture of some deckbackers on their own and in sleeves with actual cards on the non-backer side. They're basically just cards with nothing but art on one side.
It would be very cool if we could use clear sleeves + deck backers, because deck backers are very cool.