I'm making a "dry lot" for my mini. Right now he's penned up in the barn. I'v got part of the pasture he's going in mowed down. It went from 4 ft tall to about 5 inches tall in the tallest spot. I have to mow it down with my electric weed eater(battery last about 20 mins >.>) So it's going to be a slow process. My idea is to get it mowed down enough in one spot, put up a hot wire to close off that spot, then move it out as I get it mowed down. My questions are: Is 5 inches of grass short enough to put him in or should I try and go shorter? How long should I wait after mowing to put him in? Should I slowly intruduce him to it(start 2 hrs and add an hour every other day) or would he be ok just going out there? I want to reduce the risk of colic and founder as much as possible.