I bowled my first 300 tonight. I used my Tsunami. 202, 300, 180. My body wouldn't bowl properly for the third game because of all the emotions I'd just gone through, but I don't care at all!
This isn't only a bragging thread, though. I also wanted to add that (at least for me) the Tsunami rolls a lot nicer sanded. When I used it with the OOB finish, it went long and sometimes didn't cut enough at the end, thereby not hooking much at all, and no power. Sanded though, it rolls much nicer and still hits hard. I like it a LOT better that way.
Before I had it sanded, I rarely ran into a lane condition that it would work really well on during league. But now I can use it most nights with good results. Just something to try if your Tsunami isn't quite fitting into your arsenal as you hoped it would!