What is a thin C neck?
Modern “C” Shape: Thin profile, easy/fast playing, usually 9.5” radius, the Fender gold standard for the past 25 years. These necks have an ultra-comfortable flattened oval shape fit for just about any style (particularly modern rock). They are not cut as deep as “U” or “V” shaped profiles.
When did Fender go to 9.5 radius?
1980s
Today, most Fender electric instruments use one of two main fingerboard radius measurements. Most prevalent is the modern 9.5” radius (241mm), which was adopted in the 1980s and is now found on about two thirds of Fender electric instruments.