I can tell you that mine barely flickers as well and I do not have an extra diode installed. So, I'm not sure that is your problem. I really haven't had time to investigate as to why mine doesn't really flicker, but it still is a cool looking mod.

Also, your video is marked private so we can't see it.

I'm guessing that my problem is that though I have a premium, I have it connected like a pro. If I recall, I just have it tied to the GI. I connected mine over a month ago, so I'm pulling from my memory. For some reason I was thinking it would just flicker all the time then, but it really just remains on with a very very slight flicker. I will have to go back and look at how I'm supposed to connect it for a premium. I was just in a hurry to start playing it at the time.