The shifter feel is an aspect of the WRX that I always felt could benefit from aftermarket help. It initially felt sloppy and didnt inspire confidence in shifts. Eventually I upgraded the shifter bushings and installed a Mode SS, but I still felt that it was notchy. I had always wanted a knob with more weight, but I really wasn't satisfied with the options out there. At one point I ordered a custom knob from WC Latheworks(incredible service btw), but it ended up being too light for my tastes. Recently Grimmspeed released a knob that looked pretty nice and price even better so I pulled the trigger.
All I can say is-WOW. Great feel. Great weight. Fast shipment and best of all, shifting into gears feels smooth and effortless. I might lower the lever bit more, but before anyone says that I will undoubtedly sear my palm come summer time I will say that I drove around for 6 years with a TWM stainless knob in my previous car with no issues in the blazing summer temperatures of deep deep deeeeeep South Texas.