you could just do some supervised drives with a place like
Ride Drive. Most of their instructors are police. They're heavy on the 'coast' side of things, less so on the staying legal bits. While you're driving around they'll make suggestions as improvements that can be made to your general driving rather than nitpicking (ie they're not going to hammer things like push-pull steering into you).
HPC is also very good if you have deep pockets. I did an intro drive with them but I worked out that to get myself to the sort of level where you can join the club would cost a small fortune, although I have to admit that sitting in with someone of that standard is quite amazing.