I want to like lightweight throwing knives, and they are great at close range at the shop and stuff, but for that throwing spokes into boxes scratches the itch for me. But, with a concrete floor and the potential for damage, well a light weight thrower wouldn't get much use...without causing damage, from time to time. Ask me how I know.
Because I love to lob a big fat throwing knife at my target from a good long distance, I like a 12" or so o/a and 9-10oz or so. Wind be damned, if that sucker's heavy enough you're good to go! I'm no ninja, I like the excercise of walking to and from my target after two to four good throws from a good distance.
I like the overall shape of this thrower, and the pointy handle is ok although I'de personally prefer it without. The texture and the holes in the handle is excellent and really looks like it would allow a lot of control over the release.
S30V is an excellent choice at that hardness. Some folk might think; "that's pretty deluxe material for a thrower", well to that I say S30V is tough! Tougher than most carbon steels I wager and oxidization resistant to boot. Now with that being said, I think to take it all the way this knife should be polished.
That's just my take. Like I said, I'm just a backyard knife lobber. I really enjoy it and don't mind investing in a quality thrower that's gonna last and my favourite is Moeller's Viper series. I have two IIIs and they are excellent, but a little small.