terrymorse 

I operated bike tours for 10 years, and I remember several guest crashes that probably could have been avoided if the rider had been in the drops. And of course, almost all of the crashes were on fast descents.

Can you cite experts who recommend doing fast descents on the hoods? I can cite several who recommend the drops:

"Learning how to descend safely on a road bike is an important skill to learn...Your body should be relaxed, you should be looking ahead, with your hands on the drops and one or two fingers covering the brakes." —Bike Radar

"In addition to lowering your center of gravity, riding on the drops will give you much greater control over the bikes handling thanks to better grip and less chance of your hands slipping if you hit a pothole or bump in the road." —Bike Exchange

"...the first thing we can learn from watching pro road racers descend is that they move into the position with the most control right at the top of hills. This position on a road bike with dropped handlebars is with the hands on the drops." —Sharp Bicycle

"Top 10 tips for descending...using your drops gets you lower, more stable and it is the most secure position for your hands." —British Cycling

"Riding in the drops while descending is actually safer than riding on the hoods. Not only do you have a better grip on the handlebars, you also have a lower center of gravity which means more traction or grip on the road. Additionally, while in the drops you are in a better position for more powerful braking." —Liv Cycling

"Positioning your hands on the drops gives you a secure grip, provides the best access to your brake levers, and allows you to get your upper body low when you want to pick up speed. It makes you more aero and lowers your centre of gravity for higher stability." —road.cc

"Going downhill you really should be on the drops especially with a nasty descent that way you get better grip and therefore better control and of course you can brake easier." —Merlin Cyclies

"Descending in the drops over the hoods offers a number of advantages. Firstly, it lowers your centre of gravity, thereby making your bike more stable. Secondly, it gives you more leverage over the brake levers meaning you can slow down quicker. Thirdly, it makes you more aerodynamic meaning you can go faster and, finally, it provides a more secure position, where your hands are far less likely to be bounced off the bars should you go over a bump too quickly." —Road Cycling UK

"Most cyclists would agree that it is a must to ride in the drops when descending down a hill." —Prodify Cycling

"Too many folks descend steep, twisty descents with their hands up on the brake hoods. WRONG! ... Your hands belong down in the drops." —Larry Theobald, CycleItalia