Hi...

I have four miniatures, two @ 36" and two @ 32".   One of the larger ones can eat grass from the time it peaks up through the snow until six foot drifts, with no problems whatsoever, but the others, I have to gradually bring them into it, or they get laminitis, but recover.   I have a dry lot, and divided pastures, so I can control their individual pasture times. 

My question is this:  in the dry lot where the barn and windbreak are, there is a 30' diameter corral with spotty grass, some of which they don't  want because of traffic.(estimate about 2/3 edible)   I have some old carpeting I could cover that with, but I'm wondering if that is necessary, or is it a good taste for each to get their systems ready for beginning to put them out for short times?   That comes to about 150-200 sq. ft. each in edible grass.