1) This custom needs to be taken off simply because it has been heavily outclassed by much heavier (and more effective) Dragooon variants.
2) This is still a phenomenal custom, but its weakness to left-spin is really starting to hurt in this meta. That said, this custom will likely stay competitive for a long while.
3) Diablo continues to be one of the best Anti-Attack wheels out there, and this certainly remains a fearsome custom. Like Duo 230MB, this baby will be on this list for a good time yet.
4) This custom is on very, VERY shaky ground. While it continues to put up decent numbers, it can't be denied that it's one of the lighter customs on this list (which sounds so weird lol). I haven't yet seen anything that is so strictly better than it yet to take it off the list, but it could easily jump off at the drop of a hat.
5) For a long time I've been one of the few advocating this custom, and slowly but surely it has been cropping up in the Winning Customs thread in some notable tournaments. I've always thought this was competitive, and now I feel there is enough real weight to that claim to warrent a spot on this list.
Thread:
http://worldbeyblade.org/Thread-MF-L-Pha...o-Revisted
6) This is a staple custom. I don't know much more to say about this other than this is a custom you could solo a tournament with. It's
good.
Thread:
http://worldbeyblade.org/Thread-MSF-H-Wy...n-BD145RDF
7) This is such a cool combo, and it's showing up in Winning Customs more and more nowadays; enough, IMO, to be on the list, though it's so non-standard that it'd be on shaky-ish ground.
Thread:
http://worldbeyblade.org/Thread-MSF-Gryph-Gryph-E230BSF
8) This custom is so weird, haha; it's hard as heck to master, but those who have all say this is ridiculously good. I'm terrible with it myself, but it has some awesome numbers backing it up, enough that I think it might deserve a go on the list.
Thread:
http://worldbeyblade.org/Thread-MSF-H-Dr...on-SP230GF