Pearson's are good chutes.  They are scattered near and far as well as they have been in business forever.  I don't like the sliding rear gate, it will sure build your muscles if you run several hundred through in a day.  I have to say that I prefer to manually run the hydraulics.  I have looked at the stampede chutes and they look to be pretty good.  I have used a fore-most and it wasn't bad.