I definitely recommend and independant assessment. Would like to see every rider under take IAM or ROSPA assessment however competent they are. Have been riding on a full licence 20 years and was MAC tested every year until 2011. It's amazing how much you can still learn from somebody else taking an independent look at your riding. One other upside is my cornering is much more competant and exiting (safely I might add) using the vanishing point as most good track rider knows gets you progressing rather swiftly.
