Many thanks for the feedback David , it was very interesting reading your report of your experience, I may be rethinking my options .
Peter , i do already have the hard chrome kingpins and Mulberry bearings under the springs , these did improve on the original setup and when driving at slower speeds the effort is heavy but acceptable, I find things too heavy when parking but my biggest concern is when quickly going from lock to lock at tighter roundabouts at speed .
I do also have a hydraulic steering damper fitted so perhaps before things get complicated I will experiment by removing it in case it is fighting me .
Thanks for the comments guys