I'm not sure about the comments posted re my question!
I have no problem with towing a Senator above 85% with whatever car suits your needs. That is down to personal choice.
I've towed a Senator on the continent at over 70 mph and had no worries and felt very safe and stable!
But this concerns me -
"i am no slouch on the motorway either ,also just a while ago had a car overtake me on the M4 then he started to pull into our lane i was doing 65 MPH and i had to swerve over to the inside lane, how i never lost control i will never know ,also lucky for me the inside lane was clear ,but i have every confidence tow wise in the Senator"
Whatever the other driver did Joby says he was over the limit, he would not have had a leg to stand on if worse came to worse!
Joby I live a short distance from Farnham so where do you want to meet?