I wonder if this would be as much of a problem if towers could travel at 70mph. ? or would it be worse?
To be honest, it is more the vehicles that are not doing the speed limit that are the problem, at 60, you should not really be overtaken by a lorry anyway, but many break the speed limit. Even if you take it up to 70, you are still going to be overtaken by transits, sprinters etc, and they really do shift some wind at 80mph. I found the worst is when a lorry wings you, they don't really have the power to get past you, especially the speed limited ones, but they do not want to be behind a caravan, so they sit in the middle lane, with the cab on the rear corner of the caravan for ages. That is when you feel the set up become unstable, and it just takes an extra gust to push you over the edge.
At least at 60, most cars still have a bit of back up power in the engine, and as hard as it is to do at the time, the only way to get a bad snake under control, it to pull out of it...
The only bad snake I have ever had, I was at the point of no return, and it was either trying one last ditch attempt to parallel the crash barrier to get it straight, and stop, or listen to the Experts, and stick your foot down..., put the dog back in charge of the tail... When you are travelling at 50mph, and the you already have no control over the car, sticking your foot down, has to be one of the hardest things I have ever done, but sure enough, it pulled back in line, straightened up, and I was able to pull over on to the hard shoulder to recover.