Great post, I have that same shift light, had it in several cars, absolutely love it and never use the tach when installed.
I set up 3 RPM values.
1) 200 under redline, I use it to float at that RPM on track when it is best to hold RPM for a short bit instead of up and downshifting in close sequence, safer and faster in some situations.
2) Redline
3) 200 over redline, this light reacts very quickly, when downshift I can see immediately when letting out the clutch and dump it back in if it lights up, I can do this so fast I never do a money shift
Mine is silver, wish it was black, might have to wrap or paint it.
I set up 3 RPM values.
1) 200 under redline, I use it to float at that RPM on track when it is best to hold RPM for a short bit instead of up and downshifting in close sequence, safer and faster in some situations.
2) Redline
3) 200 over redline, this light reacts very quickly, when downshift I can see immediately when letting out the clutch and dump it back in if it lights up, I can do this so fast I never do a money shift
Mine is silver, wish it was black, might have to wrap or paint it.