The actual jumps we usually work with are pretty low, about 3-4 inches off the ground. Dh (the offical photographer) set the bar a little higher for better photos.
The tire can be lowered to the ground, and the short dogs in class, the pug and the Boston terrier, jump through it that way. When I dropped it, and she tried to go through, she stumbled. Boni is what her water therapist calls "all front wheel drive" because her knees are so weak, so she pulls herself through life. It was easier to pull herself through the tire when it was higher than push herself through the tire lowered. That surprised me (and really surprised the instructor) and taught us tht we really need to let the DOG tell us what's best for them.
We don't do the chute because the hard plastic tube is too slippery, and because she gets really confused with the fabric on her face. And the A-Frame at our school is too steep. (The A-Frame at Camper's herding facility is less steep and she likes it just fine).
So when we did the official pass of the evening, we skipped the equipment we couldn't do. It's the senior's prerogative.
My instructor said there's a senior in her agility club that just does low jumps and tunnels. She just kind of runs around making up her own course, but hey, she has fun!
The best night of class (thus far) was the night they introduced the bridge and teeter. The younger dogs were hesitant. But when you've been zipping up and down a ramp to get into the house for several years, the bridge was a piece of cake for Boni. HA! Seniors still have a lot to teach the young kids! We rock!
In a few weeks, we're taking intermediate obedience class. Brush up on some skills, get her away from the young ones at home, and the instructor said she'll appreciate Zamboni's leadership in the classroom