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Could you give me capx? :o Sorry for not answering quickly. I'm on a trip for summer vacation right now, will surely look at it later on after i got back.
CreativeSpark
I guess I'll write a summary about difference between compromise and enforce. Maybe this should be on the main post.
Compromise: It will try to automatically adjust position, angle etc, honoring other behaviour and commands. So, you can put sine and tween x and they'll work together without problem.
Enforce: It will not honor other behaviour or commands. If you put both sine and tween x together, it will not work like what you expect. There are reasons why this mode exists, but i forgot what is it :o.
If you're not sure, just use compromise. And you can download the example on the main post, there is an example there.