Well, the DEV of this Mods never reads or answers any discussion comments, so this may be for nothing. But hey, maybe wonders still happen:

If using this Mod without BobLogistics it is really doing strange things and not what is intend to do. For example: Red belts onyl gets extendes by +2 up to 10 and not to 18, which would be the double size like mentioned in the description.

If anyone can tell why, it would be great and even greater if anyone can tell me which values I need to change so red belts range gets REALLY extended.

optional dependency for bob logistics results in varying benefit with mod installed. This is most likely intentional/by design by Peppe. Many modderse do this, it is
a balancing technique some mod developers use: "if this mod is also loaded, slightly nerf such-and-such item."

The distances are the same for bob's and vanilla.

Looks like the description is not accurate since they updated vanilla distances. They all used to be 4, so the distance increases are relative to that.

The intention of the mod has always been to match the screenshot posted of a typical bus, so yellow goes over 1 belt set of 4, red 2 belt sets + 1 air set, blue 3 belt sets + 2 air sets. Bobs is then 4 and 5.