Riding from the inside leg to the outside rein

I saw that jesterjigger commented on my previous post, about releasing the inside rein while half halting the outside rein, while doing a transitions.

My last couple of lessons we have been focusing on driving Odin to the outside rein. He tends to fall out (or in) when I do a half halt, instead of coming together. L. had me tap his inside shoulder while half halting his outside rein, to make him have better balance. My problem is that I don't always feel him falling in, and I feel I have quite a bit of weight in both my hands (since Odin is usually heavy on the bit), so it hard to feel that I don't have enough on my outside rein.

This does require quite a bit of coordination, especially since I have to try and keep a consistent contact on the inside rein (I can't ride him together/balanced enough for me to have slack on the inside rein, yet). However, if I do manage this feat, I can see in the mirrors how much more balanced he is. It is harder for me to feel it, though, which is annoying, I need to feel if my corrections are effective.

Last lesson I did some counter-canter while doing this, and it felt a lot more balanced/straight that usual, when Odin is together he has a really awesome canter, it puts a smile on my face :D.

All this has really make me think about the title of this, you always read you should ride from the inside leg to the outside rein, now I understand a little of what that is about.