Scotty Cameron Studio Design 3.5. The Scotty Cameron Studio Design 3.5 is a combination of a natural, flowing design coupled with a mechanical neck that affords a clean view of the ball at address. The 3.5 is a handmade looking, blade style shape with rounded heel and toe and a pocket in the cavity. This design, introduced in 2003 has a short, slant neck giving the putter 1/4 toe flow for optimal performance. The Black Pearl finish, a dark smoke colour with iridescent tones, gives the putter great sound, feel and feedback all the while, being nearly maintenance free. Scotty Cameron putters are generally considered the best in the world and used by numerous Titleist staff Professionals including Ernie Els and David Love III.