object oJerico = GetObjectByTag("n_jercor");
object oSpeeder = GetObjectByTag("jerico_speeder");
I think the problem there is that you were trying to double delay something. It is like adding a dimmer and dimming a lightbulb that is already on another dimmer.... it will flicker and not work properly. Just a guess, but try the new version. I simply lengthened the delay that is built into SetGlobalFadeIn to the length of your delay command.