Right, strangely I haven't seen one these threads here in the forum.. What's wrong with you people?

Anyway, I'm seriously considering buying one soon, regardless of whether or not it becomes mandatory. Just can't decide which!
Here's my problem - I drive a Vee, which honestly doesn't have the best of the safest seating arrangements.
According to the FIA, and apparently to Hans, the head and neck restraint (HNR) should protect my neck in frontal impacts. The seat and additional head restraints should deal with side and angular impacts.
Well that's nice, but in a Vee, it would be hard to make up a seat or whatever that would prevent my head from flopping around in a side/angular impact. Or at least I just don't see how I'd come up with such a thing.
Now, in testing, the Hans seemed to perform VERY well in frontal impacts. about 20% better than the competition, if I remember right. Not that the competition performed badly, but the Hans was just a little bit better. The problem is, for 30 degree impacts, the Hans efficiency drops off 70%, where as some of the other products (DefNder and Safety Solutions stuff..) maintain the same amount of restraint.
Sure, if I hit a wall dead straight (no pun intended), I'll have a 20% better chance of walking away with the Hans.. But isn't it a lot more likely that I'll be trying to avoid whatever it is that I end up hitting, and hit it at some sort of angle? In that case, the 70% higher chance of making it out unscathed with one of the other products would be appreciated.
What does anyone else think? I need to make my mind up, as whatever it is I end up buying is better than nothing. But it's still a big enough investment for me that I want to make sure I pick the best I can.
Does anyone local own a DefNder or any of the Safety Solutions HNRs?