Is there a trick to using Ray, I've had very little success using Ray Unicorno 100RF. As much as I'm using a hasbro LLDrago stadium right now, it just doesn't seem to be hitting hard enough (i.e., it's not hitting the opponents into the walls or anything), and tbh, I don't really see what makes it such a good attack wheel from looking at it (those protrusions aren't particularly, uhh, protruding).
Even when I get a good sliding shot, and it hits, it's just not very effective (especially compared to Lightning LDrago 100RF (Or, currently, MF LLDrago 95RF), and MF Gravity Perseus 85CS), even against, say, Burn Bull AD145WD. Against defence, it's really quite terrible (as attack types are, but still, it's worse than my others), and I'm yet to have it do great against a top tier attack type.
Also, is speed the reason we don't put a Metal Face on it?
PS. Make sure you've read what I said about it not hitting hard enough, (opposing beyblades aren't being saved by the walls, they don't reach them, so I'm kinda doubting it's all the stadiums fault).