After careful analysis and consideration, we came to the conclusion that a more detailed context-based penalization system (i.e., one going beyond nasalization and labialization contexts) is not realistic. We therefore propose only minor changes to the current system.
1. It is not clear why T (voiceless palatal plosive [c]) is not included in the nasalization matrix. We recommend that it is included.
2. Also for the nasalization matrix, we recommend that the following restriction - when examining diphone [ * ][ o,O,u,U,y,i,I,e,E,a,A ], disable the use of its l-context according to the following table - is only retained for obstruents (i.e., that it is dropped from the non-nasal sonorants [j, l, r]).