It took me a long time since my car was gone for a couple weeks and I didn't have time to tear into the stock knob, but I finally installed my PWJDM shift knob with a titanium base and it is PERFECT.
It did require me to create a way to raise the shift boot by cutting a small plastic bottle cap and placing that onto the shifter before placing the boot over it. This leaves the boot sitting perfectly with the base of the PWJDM shift knob. Also, my stock knob was a b*tch to get off, it is all torn up.
As far as shifting feel, my thoughts mirror others: shifting is significantly easier and smoother, with the shift knob feeling just right size wise for my hand. It also looks so classy, I am honestly blown away what PWJDM produced for such a reasonable price.
Now, the next thing is to have my RE-11s installed Thursday morning and that should be the end of my mods for a little while! (I know I know, famous last words).