I now have the Blockleys and they certainly talk,to you more than the Avons
They must have more grip as I feel I can now drift the back end very slightly on certain corners and now apply some degree of counter steer. I'm not an expert on handling and certainly never got my knee down in many years of biking. However it's obvoius tiff was driving like a prat for the cameras and did some dis-service to the 5 speeder. It will bite back if you over cook it or lose concentration on the wrong surface ( damp leaves) but that's part of the fun, isn't it?
I'd go with all of the above. The Blockleys have more grip and a much stiffer bias ply. Bump the pressure up to 25/26 lbs and it will be a very happy tire and the car will respond very well to the change.
Both of the drivers in the vid did a huge disservice to the car and the viewers. This car takes some finesse and time to learn properly. I still can't believe the amount of time it took for me to "get" this beastie and to really have fun with that knowledge. I thought I was a good driver before. I'm a better one now.
Watching Tiff doing that disastrous turn and almost rolling it made me cringe.