first shoulder in at the trot

Jordan tried out my new "arena" in the back pasture this morning and liked it. Now we have some straight sides to work against. We did just a couple minutes of stepping over before mounting. He still walks off when first mounted, need to stop this now. Good shoulder in on both sides, getting better at changing sides. Haunches definitely drift over to the right. Got a little renvers on the right rein, so I have the tools to fix this. Did a few w-t-w transitions in shoulder-in. 45m session.