The portcullis are infact a problem sometimes... I triggered the portcullis twice on the same trigger point, and as long as I watched I haven't seen them "killing" a following gokart... until yesterday... I will try to weak the portcullis more, as that's something that annoys me quite a lot! Most of the times it works, but sometimes it closes when a car is not yet through.it would be cool to be able to "really" trigger those "door" parts like the other events to stay open for a from the player defined time ;-)
I figured you'd say something like that. As best I can tell, every trigger on a kart track can POTENTIALLY be activated by every kart. However, if a kart crosses a trigger while its duration is still running from a kart ahead, that later kart won't reactivate the trigger. So provided the track isn't long enough (or doesn't do enough laps) for the leader to start lapping the losers, you might be able to set the duration (assuming the portcullis allows that) so that it will stay open long enough for the whole field to pass through it while it's open.
It seems to me that the winning kart goes about 3x as fast as Tail-End Charlie, at least if you've got a lot of karts involved. This means if the track is 500m long and does more than 1 lap, the winner will lap Tail-End Charlie when the leader is 1/2way through the 2nd lap and Tail-End Charlie is only 1/2way through the 1st lap. By this point, the next few karts behind the leader will be strung out some distance behind, and then there's a "peloton" of losers. At this point and from here on, karts are essentially evenly distributed around the track so the duration setting will no longer work properly. If you have fewer karts, you might not reach this situation as early in the race, however.
It would be nice if we got a couple of special types of triggers just for karts so as to avoid this problem, and also to have pyrotechnics only when the race is won.