I just ordered the 4mm black version from Ebay: ebay.com link: Narrow DC 5V WS2812B Led Strip Individually Addressable WS2812 Led pixel Light
I just spent a couple of days trying to figure out my supercharger speed issues - again. Since I've owned the pin, it has always been slow (average above 130 and never dropped below 120). I thought I had done everything: I've tested all the magnets and they fire, I replaced the accelerator board with a brand new one, I've replaced all of the optos, I've cleaned and even waxed the entire inside of the loop (even under the magnets), and even removed my Pinduino lighting. Yet, I still couldn't do any better than around a 130 average.
Then I was chatting with tampa12 and he mentioned how fast he had gotten his supercharger to run . . . I was jealous. He shared with me how many ohms resistance each of his coils have, and how much idle and fire state voltage was being sent to them. I got out my meter and all of my coils had between 3.2 to 4.0 ohms (which is acceptable), idle voltage was about 3 volts on each coil, and when activated by blocking the corresponding optos it jumped up to almost 50 volts at times. During the testing, however, I noticed that the center coil didn't always have constant voltage when idle. After some playing around, I determined the issue was a bad wire/connection inside the plug that provides power to the coil. I happen to have what I need to extract the wires and re-pin them. After doing this I was getting a constant 3 volts.
Unfortunately, after testing I shaved a few ticks off my timing but still couldn't get anything below 120. Then tampa12 shared with me that he used synthetic oil to very lightly lube the inside of his supercharger loop. I didn't have any and was willing to go buy a quart just for this, but then remembered I had a small amount of silicone oil which is a good clear and safe lubricant. I applied a very light coating on the inside surfaces of the supercharger loop, went into supercharger speed test, and was blown away. I was now getting average times in the low 90's and even dropped below 90 a couple of times.
I've since played a few games, and the extra supercharger speed is awesome! I then figured I would reinstall my Pinduino lighting and even applied it where it was about 1mm above the top of the loop. I put the pin in supercharger test mode, and now my average was approaching 110. I took the lighting back off, and I'm back down to the low 90's, which is what led me to ordering the light strip I reference at the first of this post based upon the lighting @sprudeldudel suggested.
I know this is a lengthy post, but hopefully others who are in a similar situation as I was will find this information to be helpful.