Stickier tyre at the back will most likely cause terminal understeer, not sure if that would be better than a more loose rear.

I try to keep my engine always at or above 3000 rpm . You can clearly 'feel' it doesnt enjoy being run at lower revs.

2010 Morgan +4
Me racing it: http://youtu.be/CQgT2vMLEUo
2014 M3W Brooklands
To be raced