Motivated and informed by immersion in Parelli 'Resources', Balthazar and I had a very interesting session today.  Realized I've been  unclear in what I'm asking.  Our full pass down the fenceline was magic.  He knew how to do it all along but why should he exert himself when my energy is so low and wimpy?  He did a brilliant job.  I was walking toward him at a normal walking pace, not asking for one leg shift and then stopping as a reward.  His job was to get out of my way as I came toward him with a big bubble of energy around me.  And he did.  We were less successful getting him to full pass over a 20L container.  He wanted to walk forward and then sneak his hind legs through but not over.  Two things made a difference to success.  The first was putting the drum beneath him to show him it was okay for it to be there.  He wasn't scared of it but just didn't want it beneath him I guess.  Perhaps he didn't trust himself to be able to move over it without getting tangled up in it or something.  The second thing was being very clear that he wasn't to move forward.  The energy was bleeding out forward and he was coming nearly on top of me to avoid side passing over the drum. 
      It's something we'll have to keep working on.  Also did a bit of work on the 22' line.  Very humid and hot today.  Blinded by sweat in my eyes.  Balthazar was soaked - and neither of us were working that hard although suppose his stress level contributed.  Despite the heat I did ask him to trot around me and change directions when asked, or jump the arena logs or, more importantly, to keep going when I walked down the middle of the arena.  He tended to stop so had to be reminded to keep going. 
     Also worked on him mirroring me; walking forward when I did, halting when I did, walking backward when I did.  Not too bad but needs improvement. 
     Bit of a shock for both of us today.  Shocked him because I've been so low key that I suspect I've been unclear.  I was trying to train him as though we were still clicker training but using a cessation of asking as the reward.  It wasn't getting us anywhere and confused the situation.  Shock for me because he did so well!