Now that we have a four radial tank version, question is, can we eventually get three?
Unfortunately I don't know much about the process of ksp modeling, or 3d modeling in general so this might not work, but if the issue is related to not being able to stretch the textures further perhaps making a sort of tank extension part or part switch with the forward bulkheads and raceways of the central and radial tanks along with a short cylindrical extension tank extension that would fit over the standard length tanks like a hat would work?