I’m another one with a walk/canter horse (her best gait is her canter). My horse is also starts out on the stiff side and it takes time to get her back swinging. So I usually walk for 15 minutes on the long rein, then pick up the reins and do some leg yields on the walk, some walk/halt transitions, walk on the diagonal and transitions form medium walk to free walk and back to medium walk. Then I do a very slow stretchy trot just for a couple of circles or shallow, snaky serpentines to stretch/relax her back a bit. If I sent her trotting “forward” too early, she will lock her back and continue to be stiff and resistant through the most of the ride. I also use this trot to see how even she feels - I’m a bit worried now to just go right to the canter, b/c you can’t really notice on canter when a horse is just slightly off. Then I pick up a very forward, stretched down canter and do lots of transitions. That takes about 15 minutes. I go back to walk and work on turn on the hunches (love them) and rein back. After that we start a real work of 2/3 level on canter for 10 minutes: work on some half pass, 10m circles, medium canter, changes. Then a walk break again and finish up with a 10 min of the sitting trot with a lateral work, medium trot and halts. As you can see majority of my riders are spend cantering or walking.
That’s on the good day. We also have our stiff days when we spend the whole ride just working on relaxing the back, stretching down and becoming more supple – in those days it’s Training Level movements for the whole ride for us. We also have lazy days, when I just feel like she doesn’t have any energy left and I play it safe and take her for a trail hack on a walk and call it a day. I’m still just praying that she will stay sound and taking it day by day.
I tried to ride her conventionally, with lots of forward trot, but she wasn’t able to stay 100% sound. Long warm up, forward canter and lots of walk breaks seems to help to keep her sounder. Draw back of a long warm up: we don’t really have much time left to work on actual movements. Another draw back that she doesn’t look supple and animated from the get go, but I have to remind myself to be patient, not push her, and give the time for a proper warm up that she needs. With proper warm up she looks like 2 different horses at the beginning and at the end of the ride (at the end is much better).