Great info as always D.

Unless it was needed I always kept my speed to what was most efficient in SH3. That ment checking the range often as related to the speed you were using. If lowering you speed ment a great range, that was the way to go. Or stop and filler up wherever you had the chance at a friendly base or "tender".
And to what Torpex say, would it be possible to make a mod to use these ballast tanks for fuel?