[zenkat]

What is the trick for making them work? I tried a few times and gave up -- just couldn't get even close enough to iterate & improve.

[331c8c71]

Crank up your distortion and try to move the spot where you pick - for any position of the left hand there will be couple spots where they'll be easiest to make.

[nekobrain]

The tip of your pick should be really close to the tip of your thumb, that's the main point for me.