Doug - Thanks for your reply.
The Tyres are less than 12 months old and have about 4000 miles on them. Experience with rear wheel drive cars - not massive but I spent a few seasons doing hillclimbs and sprints with a Mk2.5 MX5 - track days too. I also had a Mk1 MX5 for the last 19 years which although less BHP than the Morgan weighs about the same. It had power steering but was very agile and quick through corners. I don't expect the Morgan to perform like that but a bit of a sportier feel would be good!