24 No worries. Have included two with info specific to border collies but think the info about behaviour and instincts might still be relevant to your work with the Welsh.
The trick of tapping into that focus and drive / concentration and then tweaking it to your advantage during training is easier said than done (and lengthy to try and explain!) so rather than spam your post with any more at this point I’ll let you have a read and then come back later.
Good luck!