Strengthening

Planks
Forearms and toes touch the ground.
Everything else is above the ground and straight.
Butt shouldn’t be too high (bridge) nor too low (valley.)
Hold for some # seconds, say 30 (one thousand, two thousand etc.)

External Rotation (Band)
(right arm description)
1 end of Band is tied to pole etc. to your left.
Right arm holds other end of band, and is bent at elbow, so that your forearm is forward of you.
Pull band to the right no more than 90deg while keeping elbow glued to your right side.

Internal Rotation (Band)
(right arm description)
1 end of Band is tied to pole etc. to your right.
Right arm holds other end of band, and is bent at elbow, so that your forearm is forward of you.
Pull band to the left, until your forearm meets your belly, while keeping elbow glued to your right side.


Left Hand FH
(for the right-hander)
To strengthen 2HBH, hit FHs w/ the left hand.
You can also hit left-handed 1HBHs (lifts) and left-handed Slice.


Right Hand 1HBH
(for the right-handed w/ a 2HBH)
To strengthen BH Volley and BH Slice.
And also to add this tool for the situation where you can’t play a 2HBH,
and you want to do more than a BH Slice.