What's shaft is better Diamana Splus 60 or Aldila rouge black 60

You might want to use the shaft comparison tool on the Titleist website.

To find it go to Clubs, select your driver. Now scroll down past stock shaft options to Custom Shaft Options where you'll find the tab for "Shaft Comparison Tool". Clicking on that willlead you to a page with two button slides: 1) launch angle and 2) shaft weight. As you move the buttons the dots on the chart below will show how many shafts fit your criteria. Hover your mouse over a dot and the shaft name will appear. Now look to the right where you'll see the shaft and full description. You can select up to 4 shafts to compare.

Hope this helps!