Variable syllabic boundaries 8 and 9

8. Between a nasal and tautosyllabic obstruent, English introduces as "epenthetic" stop that has the place of articulation of the preceding nasal and the heavy or light order of the following obstrunet; e.g..,

warmth ['wɔ̃:pθ] (with deleted /m/ by 12)
respon[t]se
prin[t]ce
Sampson
semptress
Thompson
contempt
bumpkin
presumption
som[p]thing (my addition)

Although epenthesis occurs in U.S. barytonic 'princess, it doesn't occur in BrE prin'cess nor in tramˌcar, where the environmental consonants are heterosyllabic to begin with. They become heterosyllabic after epenthesis, one of a number of syllabic changes resulting from the rules--this suggests to some that syllabization rules are "anywhere" rules. (see below)

9. The rule deleting interconsonantal apical stops under certain conditions does so only when they are syllable-final (e.g., in ves(t)~ment and exac(t)~ly, but not in ves~try and elec~tric); at least, this is the inference to be drawn from deletion behavior.

In environments in which the rule operates variably under slightly complex conditions, deletion behavior correlates with the variable lento and allegro syllabalizations that other other evidence has already led us to expect. Thus, deletion occurs for many speakers in conversational tempos in
ban(d)-width,
las(t) one,
trus(t) worthy,
ol(d) yeast,
jus(t) yet,
lan(d) rights,
gol(d) rights, and
las(t) rights, where we may safely assume that # preserves a syllabic division; but the deletion requires much more unmonitored styles to be heard in
lan(d)ward,
san(d)wich ( /n/ assimilates to /m/ cuz of bilabial /w/, this is my addition)
Bal(d)win,
eas(t)ward, where # would not serve to preserve a syllabic boundary before an unstressed vowel anyhow.

Examples like land rights and last rights are especially compared with laundry and vestry, where the deletion never occurs.