SH level seems to be the level when all the elements are introduced into testing: multiple marks, honoring, blinds (ergo handling), and gimmicks like walk-up, bulldog, etc.
Derby seems to have significantly more difficult marks than SH, but the dog does not need to honor or run blinds.
i'd like to try both. which is more difficult :?:
plus for derby, you can heel dog to the line on a lead, right?
perhaps a fairer comparison is SH vs Q?