stacks that use full-form subjoined RA and YA consonants.
ACIP {RVA} was converting to the wrong things.
The TMW for {RVA} was converting to the wrong ACIP.
Checked all the 'DLC' tags in the ttt (ACIP->Tibetan) package.
This mechanism is for Andres (who noticed KAsh=>K+sh in practice) and power users only, and not power users until I document the thing outside of the source code.