Wish some more builders would chime in here (or even some retail bass shops)...
OK.
We ship every single bass, to every single dealer, US or internationally, tuned to standard pitch. Doesn't matter if it's ground, air, air cargo, or pack mule.
Further, before I came to work here in Roscoe heaven, I worked at Bass Central for 5 years, and in that time we never recieved ONE bass that was not tuned to standard pitch.
Let me repeat this for emPHAsis (on the wrong sylLAble):
Not ONE bass that was not tuned to standard pitch.
Look at the BC website, note all of the high-end luthiers represented there.
Not ONE ships "detuned".
The explaination that someone gave (sorry, can't remember which poster) about the balance in the system of tension between the trussrod and the strings is dead on. Change one, you must change the other. Change anything, and you'll have to do a full setup on the other end of the trip on the brown truck. If you detune and don't loosen the trussrod, it won't DEFINITELY cause a problem, but it will increase the likelyhood of something going wrong, and to no benefit to the instrument being shipped.
Like another poster, at one time, I traveled a good bit with my basses, and when shipping them, NEVER detuned them, and never had the first problem.
Don't detune when shipping, it gives no positive effect, and MAY cause some negative ones.
On the side issue of scarf joints, they're fine if correctly executed. Just ask Mike Tobias, Rob Elrick, Joey & Vinnie at Fodera. All of 'em have some kind of glue joint in their headstock somewhere. Roscoes used to, and it was done with multi-laminate necks with no trouble at all.
Brad, great story.

The first day I was here working, Keith did something similar to drive home the point to me. He took a "B" neck (one that we'd never sell), laid it fingerboard up on the ground, and had me stand on it at the angle where the headstock joins the neck. You've met me, that's a lotta stress, right???

It didn't BUDGE. He then instructed me (which took some convincing) to JUMP up and down on it until it broke. It took about 3 good solid jump up and SLAM my feet down attempts before the wood finally complained and cracked a bit. Maple & purpleheart are strong stuff.
