Increase the max transport placement lenght to have equally spaced pillars.

Max distance between pillars is 8 squares, not counting the pillars. But the max distance you can place a transport at a time is 3.5 spaces like that, so the last pillars have a distance of 4 between them. This way you have to manually "back-track" the placement to the full third segment before placing if you want equal spacing. In the image you can see manual placement conscious to only reach the three 8-tile lengths and the quick shift-click placing at maximum range.

I think a better option is to let us place the pillars separately. And set the maximum distance between pillars to something like 20 spaces. Then snap the transports to the existing pillars.
Also, currently the game randomly sets the distance of the last 3 pillars randomly which really looks bad. Wish they would stop doing this.