Micro single format, design something special, partly noiseless.
Each color corresponds to a tone and a different power (very well explained on the previous opinion).
This set the standard feature Start Plus Deluxe, the Start Plus had three Gold Lace and Start Ultra, a Blue (handle) a gold (middle) and a double Red (bridge).
I own a Start Ultra, a Start Plus Deluxe and I tested these microphones on several layers, so I know them well.
Since their use by Clapton (the gold), a microphone has never been so much controversy.
There's those who love and those who hate. I love it. I think these pickups are very versatile and they are sounding on any guitar. The sound is warm and clear at the time it is true to the sound of the strat while offering a bit more and especially with a considerable reduction in background noise.
The Blue humbucker sounds great in the heats while keeping an attack stratabound
Red is powerful enough and oscillates between telecaster humbucker bridge and
Start the Gold sounds very bright and restored the balance in the intermediate positions
The Silver Gold is a slightly more round but barely.
Start the ultra center position of the selector combines micro extreme namely Red and Blue and then the two go great, you find some central position of the TV.
A small downside, however, and found on almost every Laces area intercepting the magnetic field decreases on the ends of the microphone, so on a Start with a vintage bridge with the string spacing is greater than on an easel modern USA (three millimeters more about) the treble or high E is found closer to the edge and sounded weaker than others, especially on micro Red and Blue.
Think about it because it's really obvious and it is true that the problem does not arise on the Start U.S. since the 80s.
In conclusion, excellent microphones, very pro, ideal if you are looking for versatility. Less if you're a purist vintage. Excellent value for money.