Understanding Society User Support

I am currently working on a publication with a very tight schedule using data from the Understanding Society. The publication will use different measures at an individual level, sometimes extracted from the questionnaire, sometimes from the self-completed questionnaire. Despite reading the Understanding Society literature, I am still unsure on which weight to use in which situation and would be grateful if you could clarify the following:

- lets say I would like to know the proportion of people who feel they belong to their local area (wave 3, adult self-completed questionnaire). After reading the user guide, my understanding is that I should use the following weight: c_indscub_xw (for combined cross-sectional adult self-completion weight) . However, a colleague is advising me to use the following weight: c_indinub_xw (for combined cross-sectional adult main interview weight).

- lets say I would like to know the proportion of people who are male and female (wave 3, adult questionnaire) . After the user guide, my understanding is that I should the following weight: c_indinub_xw (for combined cross-sectional adult main interview weight).

- lets now say I would like to know the proportion of people who feel they belong to their local area by age (one variable from the adult self-completed questionnaire and one variable from the questionnaire, both wave 3). The user guide suggests that "for individual level analysis you may want to combine information from different questionnaire sources. In this situation please select the weight suitable for the lowest level according to the hierarchy below" - which suggests to me that in that case, I should use the following weight: c_indscub_xw (for combined cross-sectional adult self-completion weight). However, again my colleague is suggesting that I should use the following weight: c_indinub_xw (for combined cross-sectional adult main interview weight).

I expect the same logic would apply to other previous waves? (waves 2, 1 and BHPS) and future wave (wave 4)

I would be so grateful if you could advise me regarding that important matter.