Phantom,
thank you very much for trying Simutrans-Experimental - your feedback is most helpful. Could you, perhaps, post a copy of your saved game so that I could evaluate why your passenger services are unprofitable? It might well help me a great deal with fine-tuning Simutrans-Experimental's settings and/or documentation.
Indeed, all of the settings described in the post on the new revenue model are implemented. Discomfort would not be a major issue for you, however, as, using Pak128, the default comfort for all vehicles would be set to 100 (which is a fairly high level), since Pak128 is not compiled specifically for Simutrans-Experimental. There will in due course be some specific configuration files available for Pak128 to make it work better with Simutrans-Experimental, including a revised speedbonus.tab, which should help to make passenger services more profitable. In the meantime, if you want to use Simutrans-Experimental with Pak128, you can always simply halve the speeds in simuconf.tab, which has been found to be a good approximation.
Also, with Simutrans-Experimental, I strongly suggest that you set the passenger level lower than in Simutrans-Standard. In Simutrans-Standard, a level of 16 or so is, I believe, the default, but in Simutrans-Experimental a level between 8 and 12 is more advisable (and, if you set the towns to be very large, perhaps even as low as 5 or 6 - this will need some further tuning and testing, however). This will reduce overcrowding.
As to Simutrans-Experimental being slower, I am working with Knightly to optimise the code, and am hoping that future versions will be a little faster (perhaps still not as fast as Simutrans-Standard, but that has to be weighed against the additional features). However, it would be very useful to me to know what sort of computer that you are using (CPU type and speed, memory, operating system in particular) to have an idea how Simutrans-Experimental performs on different systems.
Finally, as to simuconf.tab files, the rule is, I think, that the parameters in the pakset files override the parameters in the general file, but, if nothing is specified in the pakset files, then the general file prevails.
(As to Z9999's reply, he is right about the settings being saved in the save game files: you will need to start a new game for the new settings to have effect. I do not, however, recommend ever using no_routing_over_overcrowded=1, as this will cause unfixable deadlocks. For example, if there is a passenger route between A and B, and both stations A and B are overcrowded, no passengers will ever be transported between A and B. The overcrowding will not, therefore, go away. The passengers will not ever go away unless the stops are deleted.)