Hi Chip,
Jim's been machine polishing for over 22 years now and is happy to share his skills and techniques... he's done a number of tuition days with novices, amateurs, and professionals who have all taken things away from the course. One thing we do always say is that you won't leave at the end of the day being able to machine polish with the same skill as Jim can, however, you will leave with some sound advice and techniques that you can go on to develop and hone to your own style.
To be honest, if you've been doing it for 20 years and you're AutoGlym certificated, it may be that you're already doing it right, and if that's the case, at least you can end the day knowing that you can call yourself a Detailer!
We're not local to Bolton, but we don't mind travelling or you're more than welcome to come and spend the day here with us. It would be up to you.
Let us know if you're interested and I'll send you a PM with some more details
All the best
Taryn and Jim