The worlds best Tornado sailors would for sure use 3DL if it was allowed.

In fact in 1995 Chris Nicholson had a 3DL sail made for his Tornado. The benefits are clear that a 3DL sail will be lighter and have a completly repeatable shape which negates the need to make those little tweaks.

Maxx cloth is made by Contender, it was the first cloth used in the latest crosscut development, now however the top teams are using Flex which is made by Dimension. The Maxx cloth was not stable enough unless you used the carbon version which is banned in the Tornado. The New Flex sails are showing promise.

Its is a lot easier to make a change to a Maxx or Flex sail than a radial sail. The Seams are located at the batten pockets and all you have to do is split the seam at the pocket, make the change and stick it back together. A radial sail is a complete nightmare to alter seam shape on the radial panels once the sail has been made.