Well, the test might already have been done, but charge your frameshift drive within the cloud? At zero speed, just charging the drive while right next to the UA?
Close to what was proposed in the destructive test (jump when it 'explodes'), but try it while the UA is still at high integrity.
On the wiki I can only find that people tried to 'equip' it as a drive.
From the wiki:
CMDR's have jumped systems or into supercruise while near a UA or into a system with the UA being deployed to no effect. This has been done in a Wing as well, with part of the Wing in one system and the UA and the rest of the Wing in an adjacent system, with the UA dropped in normal space to see if it would work as some sort of system to system jump beacon for a Wing, to no effect.