Use whatever work flow is easiest.
Changes to individual clips in one sequence are not reflected in any other. Changes to titles, images, nested sequences, AE Comps, etc. are reflected in all, as they should be.
i'm down with the clips not changing but why do the titles change?
how can i copy a title but then not have it change between sequences? and when you say 'as it should be', that tells me i'm missing a lot on how sequences should work can u fill me in or point me in the right direction? hard to find a tutorial only on sequences.
When you open a title in the timeline, it opens the actual title, not just that instance of the title in the timeline. To keep the title in the previous sequence intact, you must create a new title (open the title, click new title based on current title) then change that.
hard to find a tutorial only on sequences.
Try the included Help file. All this information is there.