Turning a final vowel into sukūn, or using rawm or ishmām in the right setting, concerns the form of the stop. Deciding where to pause so that a sentence retains its meaning concerns the stopping place.
Correctly stilling a consonant cannot rescue a break that severs essential grammar; nor can choosing a good place excuse a mispronounced final letter. Test both separately.
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How to stop versus where to stop
Conclusion: Tajwīd, Waqf, ʿUthmānic Rasm and Qirāʾāt
Turning a final vowel into sukūn, or using rawm or ishmām in the right setting, concerns the form of the stop. Deciding where to pause so that a sentence retains its meaning concerns the stopping place.
Correctly stilling a consonant cannot rescue a break that severs essential grammar; nor can choosing a good place excuse a mispronounced final letter. Test both separately.