My 2 are very different dogs to run, I don't think it would ever be possible to run them both the same. While it isn't as difficult to run Charlie as it used to be (and Vickie, you have attempted that lol) he is still a harder dog to run. He no longer looks for a way out but will stress if he doesn't have all the information in plenty of time.
Charlie will drive ahead nicely but wont always pick up on subtle offset jumps and as a result can run right past an obstacle when he is ahead of me. The same thing with distance work, he has really nice distance but will sometimes go out too far and around stuff as he just doesn't instinctively follow a line. My favourite was Loris' JDO last year in Newcastle. The distance part was quite technical, involved layering jumps and bringing them to you and back out, finishing off with sending to a tunnel. Charlie did all the technical stuff perfectly then ran around the outside of the tunnel (it was very sneaky, neither Loris nor I realised until he got to the end and didn't actually come out of the tunnel, instead he came from behind it
) He has become much better at understanding my body with offset jumps though, and will push out nicely to jumps and save my arse where Delta would just miss them if I don't get into the right position. Delta has proven over and over again that she can follow the most ridiculous of offset lines which is a great help in many gamblers runs. She works nicely ahead of me but doesn't have the same distance ability as Charlie. She will work at a distance but needs to be catapaulted out there alot more than him, rather than just moving laterally away from me.
Part of Charlie's "get the love back for agility" training involved lots of short sequences for a tennis ball. I now have the issue of anywhere on a course that looks like it could possibly be the end of a sequence (usually a jump leading to nowhere) and Charlie will power ahead in anticipation of a throw, then go out really wide as I attempt to turn him and bring him back on course which wastes a ridiculous amount of time. When I get my timing right, Delta is a much tighter dog, unfortunately I cannot get it together of late and we are having some very crunchy runs as a result.
Charlie is also a slower dog around the course, he isn't as efficient over jumps and doesn't flatten out as much which means he is taking off and landing alot closer to the jump than Delta, who flattens out and is already on top of the next jump if I don't give a signal to turn in time.
Because mine started trialling at the same time they have pretty much always been in the same classes so I have to walk every course in 2 different ways. Some courses I walk completely differently as I will very rarely rear cross Charlie as I don't want to risk stressing him, and front crosses work much better for him. Most of the time I know I wont be able to get into the position for the same front cross with Delta so I walk it again with rear crosses. Then I hope I remember which course is for which dog when I get out there
It makes it even harder for things like gamblers and snooker as I will avoid contacts and weaves in opening sequences whenever possible with Charlie, so I end up with 2 completely different courses
I think that every dog is different and it is up to us to treat them as such. I don't think it is fair to expect one dog to run just like another to convenience us, we work with what they give us. When I was really struggling with running them both about 12 months ago I seriously considered taking it in turns with them, and only running one at each trial because it just wasn't fair on them. Charlie was so hot and cold that whenever he was happy to run for the day I focussed so much on him that Delta kinda lucked out and had to find her own way around courses, and whenever he wasn't happy to run I made it worse by not wanting to run him and focussing on her. I managed to work through that though, and was able to look at each dog as individual and see their strengths and weaknesses and understand what each had to offer me out there to use.