If you still want your own topic, after reading those, you might want to reword it a little to refine your topic to cover what you think was not adequately discussed in the other threads.
You can reply to this thread when you are ready for us to further consider your topic.
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Yes, you can change the title. You appear to have a good plan for the thread.
You can edit your original post, including the title. Or, if you prefer, just compose a new message as a reply to this. Admin's can promote that message to be the opener for a new thread.