Lukas, I agree with Chris...the technology in putters is not as applicable as per drivers....however confidence is key...if you love your putter stick with it.

I still use my old Titleist Bullseye Putters and PP Sonoma from time to time... love 'em!

Good Luck!

Ditto, here....what feels good and what is rolling the ball in the hole is the key......don't worry about what it looks like.....a new clean grip make a difference........if you are happy, keep it......