Okay, so here's the deal...

I'm graduating from college in December of this year, and my parents have decided they want to get me a graduation gift. I've been thinking that I (or my parents rather) should invest in a stone so I can better my honing abilities. I presently own the wojtec Arkansas, and the slate hone, both of which have gotten me CLOSE to shaving sharp, but not quite there. While I'm sure my technique probably has something to do with this, I feel a more tried and true stone might also be a wise investment.

Now for the question...

If I've been developing good bevels and getting close with the stones I have, should I go for the Norton 4000/8000, or go for the coticule/Turiengen??

I like the idea of using natural stones, and I feel that even if I get a Norton, I'll eventually need a coticule for finishing anyways. I have a pasted paddle strop already, but somehow I feel I need another step between the Arkansas and the paddle to develop a solid shaver.

Your thoughts??