I'm still not a fan, in a few of those pictures she looks wormy.. and I honestly think you could find something better with a little more looking. I wouldn't pay as much as they want for a coming 5 year old grade mare who already looks like she's carrying back problems and has other conformation flaws...I'm not saying you have to find something with perfect conformation but you can really, really do better if you're looking for a barrel prospect. There are a TON of young prospects out there..
I think SH means that the owner isn't very experienced and doesn't have a whole lot of knowledge when it comes to barrel horses in general..The owner hasn't provided very good information or pictures in her sale ad. For someone who is serious about selling a good horse will have a much better for sale ad.