I can’t stress enough how important it is to use a metronome or jam track while practicing. Start out at a slow tempo and practice your “chop” repeatedly until you are comfortable playing the part. Now, try to play it at a faster speed paying close attention to the “groove” of the lick. Are you playing it correctly? If not, go back to the slower tempo and practice again.
Keep practicing at the slower speed and gradually build up the tempo to the proper speed.
Choose your tempo speed, then click on the button on right side of metronome to start and stop.
NOTE: Sorry.. This metronome doesn’t work on mobile devices.