Nice!
I'd have been messing with kitten bellies when they climbed like that.
You didn't explain WHY phasing is important on German CV joints.
Phasing allows proper axial movement of the joint to account for axle length changes during suspension operation.
Most CV axles have a double sphere outer joint (that has no axial movement) and an inner joint that has 2" of in-and out" available. Often these are 3 lobed and called "tripod" joints.
The German design appears to be STRONGER as when folks get serious that is the direction they change too.
High end rock crawler stuff is almost always German style.
Now, you get an old school driveshaft (with standard u-joints) "out of phase" and the vibration gremlin you create will dive you "bat-shit" crazy.
Jaguar had multi-piece driveshafts with an elastomer between two fixed tubes for NVH.
Had a car once that 3 other shops tried to fix (to the tune of 5K worth of un-needed work) that twisted its driveshaft, and the u-joints no longer lined up.
Customer didn't believe it was just a driveshaft so I replaced it with another out of one of the "For Sale" cars at this shop and it SOLVED the "can't see out of the rearview mirror" vibrations.
An out of phase old school drive shaft is un-drivable.
An out of phase German shaft will still sort of work until it EATS the CV joints.
Most old school drive shafts are single piece and unless you actually twist the tube you cannot achieve out of phase. The problematic ones are either two piece like the Jag OR have a splined section (for axial movement) that someone didn't index before they took it apart.
The last one is SUPER COMMON to happen!
EDIT: Have another thought...
If you do the "floating axle" like Chris did there might be enough axial freedom that phasing the German style junk might be unnecessary!
I'd have still corrected it too but...
Maybe you didn't have too!
The whole "Floating Axle" thing is DEFINITELY Ninja approved!