I have 388D grass20 on the forehand. On the backhand, I have ROKi RXTON3 pink. I've slightly rounded the edges of the rubber where my index finger touches it with sandpaper. I've only used it for about 2 hours of practice, so it's still in good condition. Would this be suitable for trying out penhold pimples? I will protect the racket with bubble wrap and ship it in a Mercari cardboard box. Thank you.