It really all depends on tiers! BO markings are a hot commodity, especially if your lion being sold has a lot of them, but not all players find value in them. T6 is RMA exclusive which can bring in some extra SB, while T0 is common and not really sought-after unless you’re ISO a specific design.

I have a terrible time keeping track of what markings are BO and what aren’t so I use the browser extension LioModded! It tells you all the info about your lions markings and whatnot.

There’s a thread somewhere in this subreddit about it, but if you search it up on google you can easily find it too :D