There are four click types: dental, lateral, alveolar, and palatal, each of which found in twelve series or accompaniments (combinations of manner, phonation, and contour).
A palatal trill is impractically difficult, if not actually impossible.
The split is an allophonic variation, with the fronter realisation occurring near velar and palatal consonants, and the more central one occurring elsewhere.
A speech bulb, yet another type of prosthetic device often confused with a palatal obturator, contains a pharyngeal section, which goes behind the soft palate.
