The gate trial is a fun format, for a play day event. Our club usually runs one or two of these a year, the day before an event.
Personally, I think we need to stick with regular old trials and just make it fun for the average guy. Your novice/beginner line should be extremely easy. This class needs to be set for a guy who shows up on a trail bike, or someone with very little motorcycle experience. The loop should be very easy too. We are setting up club trials events not nationals or Ute cups.
Setting a trials to please the mob is something very very hard to do. I kinda go off the theory that you can't please everyone, as long as the majority are happy, you did good! I have the hardest with the lower class sections. I haven't ridden a lower class trial since 1993, so its a little difficult. If I am in question, I error on the side of easy for these guys. I will also sometimes enlist the help of a lower class rider to look at my sections and offer advise. Like I said, the event has got to be enjoyable.