If Im rigth, your mod uses predefined functions to create recipes, so Im not sure if this thing Im gonna ask is easy, or if its even possible without changing alot of things, but, could you use better stack inserters for the ultimate belts by owoshima and pankeko if bob logistics is active?, right now they all use the express stack inserter, I was thinking something like:
Miniloader->stack inserter
Ultra fast->Fast
Extreme Fast->Fast
Ultra Express->Express
Extreme Express->Turbo
Ultimate->Ultimate
Or, if you want to start with the Express, as it is now:
Ultra Fast->Express
Extreme Fast->Turbo
Ultra Express->Turbo
Extreme Express->Ultimate
Ultimate->Ultimate
and the filter version for the filter version.
Those are just ideas, but something like that, using better inserters for each tier