Earlier year, I started pushing for more than just modest lengthenings with my horse. I got a lot of mileage out of straightening him by putting weight into my outside stirrup. That was effective for freeing up his neck and shoulders to start reaching up and out. Big improvement.
Now, I am finding that to start increasing the pushing power and hopefully take things to the next level, I have to engage the inside hind and ask for a wee bit more bend and lateral flexion in the poll during the lengthening - I am mostly asking for lengthenings on a long side. This is keeping him softer over his topline and really letting more energy come through from behind. His capacity to collect has increased over the year as well, so I am also preparing with greater collection and bend, but I don’t think that’s making as much of a difference as the “management” I’m doing during the lengthening to develop “more” of an extension.
I’ve never heard the development of medium and extended gaits described in quite this kind of detail. Mostly what I have seen/heard/read is about preparation through increased collection, then asking for extension basically by opening the front door and “letting” it happen. I’m aware of course that straightness and collection are relevant because training scale, but I feel like I’m doing a lot more to support the “extension” (we are probably barely verging on a true medium) than the description of “letting” it happen implies.
Wondering if this is consistent with what others here have experienced/felt in developing their own horses. Generally speaking, he needs a lot of support from the rider to help maintain his balance, especially when asking him to also be soft and elastic through his whole body. He has quite a downhill build. Maybe a more naturally balanced horse would not need so much “management”?