I did not have a good experience with Carri-Lite corrals. They are fantastic for traveling but when you extend the collapsed legs to put the panels up to full height, it leaves a 2' high void from ground to the first rail. My horse (14'2h) put his nose under the rail to check out the grass next door, lifted his head and discovered he could quite easily move the (very lightweight) panels. After he got them out of their stronger circular shape, he was able to maneuver a couple of panels down and walked right out. All within the first 2 hours of try-out in my pasture. I will say no panels broke during his escape.
I did follow all instructions, used the pins correctly, etc. After the first try I supplemented with bungees, orange construction netting, etc., but it ended up being such a big hassle I gave up on it and was able to sell it to a woman who had one and loved it. So I guess it just depends on how much of an escape artist or "grass is always greener" type horse you have. I replaced mine with a high-tie and that suits my horse much better (and is much easier to set up).
Gotmypony - I have two ponies I'm looking to contain and I can see each of them doing this same thing. The pins are not tall enough to prevent a horse lifting them and moving the panels?
I live in a horsey neighborhood and sometimes quite a few of us go horse camping. A friend got these http://www.alibaba.com/product/oneha...ral_Panel.html
and after the first trip where he used them, 6 of us ordered these panels for ourselves. We really like them.
4Corners... Well the pins appeared long enough to me but mine had no trouble getting them out - or he may have just dislodged them from the lowest connecting "holes" and that was enough to let the fence panels tilt. I think long ago Carri-Lite came with pins that were actually "ribbed" vertically and fit into corresponding channels in the connectors but they aren't like that anymore. The pins just slip in and can therefore slip out just as easily. I was disappointed that there weren't ridges and channels anymore because I thought that would give it extra stability but I think - IIRC - they said they'd had had some connectors breaking under stress from that tight fit. At any rate my horse got out within a couple of hours - and he's a laid back guy (but curious enough to mess with it after he lifted his head and it moved). The lady I sold my panels to absolutely loved them for her mare - she had a separate set but wanted more. She did say her son's gelding didn't respect them so I guess it just depends on what kind of horse you have. You know how some people can put up the little electric braid and not even turn it on!