Luke, thank you for the advice. However I decided to go ahead and give the D65's 215/70-14 a try. Bought them from the rack and they arrived today. Had them mounted and put about 60 miles on the new tires this afternoon. So far very impressed, excellent ride/noise qualities as well as handling. Feel better in fact than the MXV4's I had on the car. The fronts were only 30% worn and the rears about 60% but the D65's though not H rated feel better so far.
Thank you again for the help.
Regards,
Joe Brasileiro
1980 450SEL
1987 Jaguar XJ6