I run classes at various locations around Northampton (Grange Park, Upton, and more). These lessons are always on lead for safety, but I carry a selection of long lines for some of the more interesting training.
The courses run for six weeks, one hour at a time, and you get to learn a LOT of new skills.
I will run mixed classes as I find that at the basic level, we can crossover a lot of skills. In terms of progressions, I find that workshops are the way to go as you can pick your specific thing to work on, without all the fluff we have to include in the basic classes.
For more specific and advanced obedience, I run a ‘trainers question time’ where we can work on each individuals needs, see below for details. I also hold workshops. You can find information on those here.