It's true that there are bits and pieces that are really confusing.
Spoiler Warning for Epi 5: (Highlight to read)
Like that bit in Episode 5 where Yagyuu suddenly appears just before Kaidou's match.
(I'm sorry, I don't know what the hell they're saying coz I still haven't gotten around to watching the subbed version so I'm basing everything on the things I kinda understood from watching the raw version.)
Anyway, in that episode, we see Kaidou getting all erm... weird after Yagyuu says something to him and then the recap of how they met at that tennis game. And then the tennis game they played against the wacko boys who had been punched around by Kaidou from before.
Well... I was wondering since when did Yagyuu have the Laserbeam????!!! He only had the /Golf Swing/ before and how on earth did Kaidou know how it looked like?!
Totally confused on that score~ Can anyone help?
Otherwise... The OVAs are really, really good~ Can't wait to see the next match up~!! It's doubles this time round.