I ended up with a Volt II. The torsion bar/spring broke on my son's knife and we sent it back to Kershaw for repair. They sent us a new one rather than fixing the old one and in the meantime I bought my son another one (it took them a while to get it back to us). I think I just should have asked them for the spring and put it in myself. So, dad gets the one from Kershaw, good deal! Anyway, I have this to say about it:
1. The handle is a little small for my hands (maybe the original Volt is larger, I don't know)
2. The spring assist works really well if you like that type of thing.
3. Kershaw customer service is very good and reliable, but was a little slow in my case.
4. Their 8cr13MoV is good enough steel and holds an edge well for the price
5. My son bought one with half serrations that I would not have bought.
6. The blade was ground very well, centered well and the sharpening was very good too.
7. The handle material is fine, well made and is not slippery, but I do not know about the SS version.
8. Lockup was tight
I thought about changing out the scales for something a little more refined, but after looking at it, it appeared to be a bit tricky. I seem to remember that they routed out the scales for the spring assist, but I'm not sure if I remember correctly.
<edit> Oops, I see dsalazar has already described this in a previous reply.
Regards,
H1