How old is Glimmer? It may be that she's not ready for full-sized contact obstacles yet.
Can your dogwalk be lowered at all? Our club's dogwalk can be set to an intermediate height of about 2' and Duster trained at this height until he was a year old. We only raised the obstacle to its full height a couple of months ago. If your club's dogwalk offers this option, I'd recommend it. I have a couple of friends whose 18-month-old dogs are still training at the lower height, one for safety reasons (crazy border collie), one because the dog just doesn't like the obstacle. See the example in the video below (Duster's early training). Once the dog is comfortable at this height, we can raise the obstacle one side at a time: e.g. have the up-ramp at the lower level and the down-ramp at full height. https://www.youtube.com/watch?v=JEOnHGcn4CE
Otherwise, it might be a good idea to go back a step and have her do the obstacle on the ground for a while.
Good luck, hope you find a solution.
Ceegee, Thanks for the video... I have been watching Duster's posts-- really great since he was a little one.
Glimmer is 20 months old.
We are both definitely beginners, really more me than her, because on occasion when one of the instructors works with her, she gets it right away a good part of it is my body language and my calls.
We did work on it at a lower height for a few runs a few weeks ago, but then they raised it and have not really ever had a problem with any of the platform type objects, regardles of height before. I guess she's really only been on it maybe 20 times in total.
It was an unusal situation last night, there are two classes that are held at the same time, Agility 1 and 2. Typically they take one class and work on weaves and the other for obstacles. A couple of us in Agility 1 had finished with our weaves and they wanted to work with one of the dogs alone so they sent us to join the Agility 2 group so we wouldn't have to sit around.
The instructor in Agility 2 cut the sequence they were doing down for the two of us in Agility 1, but maybe it was also too many things in a row. Usually we are only doing sequences with 2 obstacles to work on the transition between 2 things.
Perhaps most importantly, I will need to find some way/place to practice inbetween classes.
Thanks again for the pointers