I must of missed this but... not sure if i can get my head around what you're saying. If what i think you're saying....then i had no clue there was a "tax"....ergh the "T" wordSearch BULK SALES TAX or wait for some one else to copy and paste, if you can't be bothered and just want to whine, to realy Know how Bulk trading works you have to read up on bulk sales tax in the game...
Short version is the bigger the CARGO rack is and the more full the LESS you get paid per ton... Inara list ZERO ton PRICE and Delivered past high tonnage prices,,.
the lower price is the higher tonnage.... The higher the tonnage you arrive with thats nearer the demand the lower you get paid...
Are you saying its better to shop around for best sell price with lower amounts in your hold or type of racks installed? So 6-7e instead of 8's for example, or is it just based on what you're holding. I still have a head ache forgive me.
Logic is now telling me to use a medium ship and dock on the smaller pads/stations that seem to offer 10-20k more (at time of writing) hmmm interesting