I changed from a Pistolini on my Newport 2 Select to a Matador midsize last year. I have since changed even thicker to the Matador Large. Both of the Matadors have some taper. Larger on the top than the bottom. It's a gradual taper. The midsize was a great step for me to see how I liked a larger grip. After a couple months, I was ready for the Large Matador. Try it. I'll bet you like it.

Personally, based on experience, I would try the GolfPride SNSR Tour 104. It has a midsize pistol style grip. Awesome grip. I swapped my Matador for this grip.

I've got the Cameron mid-size on both my Scotty's, changing from having a Winn on there temporarily. The Cameron grip is more expensive, and hard to get some places, if you're not getting it from a Titleist/Scotty dealer, but in my opinion much superior the way the grip feels, the different type of tackiness it has and set up. I think you'll be happy. Best bet is to go to a Titleist PGA pro or authorized dealer and they can maybe get it for you a little cheaper if they're putting in an order for others and can share the shipping charges.