I just installed the DG (Diesel Geek) Sigma 6 Short Shift kit, and oh yeah, it rocks!
Link: http://www.dieselgeek.com/Detail.bok?no=331
The instructions say it should take an hour to install, mine took about an hour and a half just because I usually read then re-read each step to make sure I get it right. Also, there was a step that just wasn't working so I had to improvise a bit. Nothing drastic, just a step that was necessary to make a connection. BTW, for any one wanting more info on this 'extra step' LMK and I can walk ya thru it.
So yeah, as some have said in previous posts, it's 'notchy' and has a mechanical feel, but that's what I wanted!
And I can really appreciate the ECS DB Mount more now.
So, I love the product and highly recommend it!

 

So you like it then?

 

Hey, it's not often that I find a product (automotive or otherwise) that exceeds my expectations in cost, material, construction, installation and function!
So, yeah, I'm a little jazzed up about this SSK.

 

Have you gotten any grindage when shifting with it yet?

 

No. And from what I've read/been told, there shouldn't be any grinding issues so long as I don't shift faster then the syncros can react. But once the syncros start to wear, the incidence of grindingwill increase.