dispatching shorter trains than the maximum allowed by both stations

[apaksl]

I'm still fairly new to LTN, so forgive my noobiness.

I'm playing pyanodons now, so I'm dealing with many subfactories producing trace amounts of byproducts that I'd like to provide to the network. So I'm trying to set up some stations to allow for shorter trains than its maximum. My issue is that if I have two such stations transferring between, sometimes LTN will dispatch a train of length 2 to pickup from a station with a max length 5 and then deliver to a station with max length 5.

Is there a way to force LTN to only dispatch the longest train that can fit in both stations?

[Optera]

Requester & Provider:

minimum train length (optional) - minimum length of locos + wagon allowed in this station (default=0 no limit)
maximum train length (optional) - maximum length of locos + wagon allowed in this station (default=0 no limit)