I installed a Pro 5.0 with a 6" short stick. I liked if for a while, then grew to detest it. It's extremely notchy. I threw in synthetic tranny fluid, replaced the Pro 5.0 with the stock shifter plus the 6" short stick and it's damn near butter smooth now. It's a pleasure to drive. When I finally get home, to school/ work, girlfriend's house/ whatever, I don't want to get out of my car. The aftermarket shifter felt like I was stirring rocks with an aluminum rod.
There's next to no difference in shift time for me, especially since the stock shifter goes into gear whenever I want it to. I had to wait for the Pro 5.0 to click into the next gear, unless I really slammed it. As for missing the 2-3 shift with the stock tranny, put your hand on the shifter with your fingers pointing towards 1 'o' clock and push in that direction. You should hit it every time.