yes, i also find a drag difference with judos at 30 yards and out. there is probably some difference at the shorter distances as well, but arrow speed hides it.
overall, if i do the right thing with regards to form and release, shot placement is the same for me with both judos and woodsmans at 10 to 25 yards. same arrow, just a change of points (all points are 250 grains, and the insert is 100 grain brass = 350 grains up front).
i can get the judos and woodsmans to impact the same at 30+ yards if i drop the judo weight down by 40 to 50 grains - however, this makes for different judo flight at the shorter distances, probably due to change in arrow weight and foc.
all this may seem too anal for some folks, but once i get the numbers sorted out all i've gotta do is build my arrows the same and the rest is up to my shooting. so for me it's worth putting in the testing time since once it's all sussed out i'm good to go and i like no-brainer stuff that lets me concentrate on hunting/shooting.