I looked at several shifters before picking up the TWM. You'll also notice the TWM has a bearing at the bottom whereas most of them have a bushing.
If you plan on running an aftermarket shift knob and order from TWM, you may ask them if you can get an extra one of those black pieces that's supposed to hold the boot up. It makes a very nice finishing piece on top:
I ended up using washers underneath to hold the boot up, but had I known I would have asked about getting an extra part from them ahead of time.
Now I am using a Voodoo shift knob. Those are reasonably priced and the correct thread. I thought the TWM shift knobs, and some of the other shift knob prices I see out there are ridiculously priced.