Well, I tried the headrest at
Well, I tried the headrest at various seat angles from 27 - 45 degrees. I currently ride at 38 degrees but rarely use the headrest. I tried to mimic the seat angle of the new Silvio at 27 degrees and found the headrest to be very comfortable on long, straight, smooth roads. At 38 - 45 degrees, it really wasn't necessary except on long rides of 50 miles or more and it gets in the way of turning my head in areas of congested traffic. It is very springy on rough roads. The aluminum flexes and doesn't require re-bending due to the weight of my head - but the content of my skull is mostly air, so a person with any gray matter might have an issue. I've yet to decide whether the springiness is a beneficial shock absorber or a medieval skull catapult. I can see why headrests are standard equipment on the Silvio or Vendetta, but it would be hard to recommend for a Quest.