How do you strengthen your fingers? Especially the last pinky finger, very big problem for most people.

I purchased a gripmaster, and it helped immensely. It also showed my pinky unable to press down the thingy until i tried it a few more times after a few weeks, i showed improvement. (after some numbing muscle tears on the fingers and tendons on the arm)

imo, my pinky finger has now gained much more strength and speed compared to if i were to rely on just the high action kapok alone which does squat on the muscles beyond the fingers (the wrist/tendons).

I think the gripmaster (medium tension) is an excellent device and helped speed up my fingers and solve issues that would've hindered me during scales practising etc.