I was thinking of the way some horses have a "pony trot" - very rapid in rhythm, but very short and up and down like a sewing machine. That's almost impossible to post to. A slow trot BUT with good impulsion seems to me to make the motion larger and easier to find. But that's probably because my mare has a very, very smooth stride but not particularly long.
True. Bay's slowest trot is still really long, like stride-one-thousand-stride-two-thousand. I feel really mechanical and clumsy posting it.
I am gonna imagine that OKIE, being a paint has a relatively daisy-cutter like trot without a ~lot~ of bounce or length of stride. I was thinking she might be trying to post to a pretty slow jog-trot if he was trained western, but it could be that he trots faster or rougher, or she wouldn't be trying to post in the first place!
Cindy, any feel for how his trot compares to the trots we are describing? really doesn't matter, you'll figure out how to post his favorite pace no matter what it is.