If I get you right in viewtopic.php?f=33&t=41992&start=2940#p1118368
(this describes what you call Base/Bonus, doesn´t it?), then a setting of 25%/0%/1 should be equivalent to what I did, i.e. reducing any cargo production by factor four.
However, I currently don´t feel like needing a bonus feature, actually I´m quite content with the way CargoDist behaves for bigger networks, the only problem I had was the amount of cargo produced.
But of course, 25% probably only works properly, if the second thing I did is done, i.e. making the acceptance rates stay higher even when serviced seldom. If servicing a small village every four months is enough, then your railway lines suddendly can look much more like real ones, in that you can do much more with one-track-lines, e.g. mixing a local train every four months with a far-distance train every two or four months.
Also, since I play with a connected network in single-player-mode for my own fun anyway, I don´t feel like needing any incentive from game-side for building a connected network...
Could you point me to a post where you describe waybill, maybe I overlooked it but I didn´t see one.
Regarding testing it myself, I don´t want to promise too much, this is simply a question of time, I do play (and improve my own patch) from time to time, but it´s not like I´m playing every day or so...