I don't want to do a super long review.
I have had the stock knob on 2 EVO VIIIs. It is aiiieeet. whatever.
I had the Razo Ball on my first EVO. The size was perfect but it wasn't weighted.
I got the ARC knob for both my EVOs because...well it is ARC. The piece is weighted and amazing but it was tiny.
For a while, I was in denial that this really mattered but then I just bit the bullet and got a LATHE WERKS knob.
It is the size of the Razo and heavier than the ARC.
This is the best knob I have ever used on an EVO, and my car shifts better with it for sure.
It just shifts smoother.
Get this knob you knobs.
The ARC knob is 264g and is 1.5" (approx.)
The Lathe Werks knob is 270g and is 2"
Also, this is just a big hunk of beautifully machined Ti.
The ARC knob is a mass produced ball of Ti with a plastic insert...not as cool.
If you miss my old style super detailed novella reviews, just read this guy's, he seems cool even though he drives an STi.
edit: I hate how this site changes your pictures to sideways.