They weren’t but some people are saying that vex said we can use them as long as we don’t modify the design and it serves the same purpose as normal inserts.
Their reason is because of vex’s shipping issues which is why we can use them if we have no alternative
Is it legal? Check the rulebook
Don’t believe the rulebook? Fine. Double check the Q&A.
Can’t find a Q&A? Ask in the forum.
Get an answer from a forum moderator? Believe them.
Don’t believe them? I can’t fix that.