Hi Samson;
 
I have been keeping track of you and your articles, You're doing a good job promoting and developing Table Tennis Players. I will share and article I wrote to help a local player with his blade angle to control spins.
 
I am helping a player here understand the Importance of; direction of the swing and the blade angle. I don't believe enough is taught about the blade angle and the feel of the angle to determine their blade angle with out looking. So I wrote him a little article to emphasis for him to learn the feel of the blade angle so He can touch any part of the ball with his blade angle to control the table tennis ball:
The direction of the arm-swing and the blade angle controls the table Tennis Ball.
 
(Blade angle) to control under-spin: Starting with a neutral Blade angle. Holding the blade in your hand with the top edge of the blade pointing at 12 PM = a neutral blade angle. Top edge of blade pointing At 1 Pm= slightly open blade, top edge of the blade pointing at 2 Pm =partially open blade, top edge of the blade pointing at 3 pm=  Blade angle is completely Open.
 
Top blade edge pointing to control top-spin: at 11 Am= slightly closed blade, top edge of the blade Pointing at 10 AM= partially closed blade, top edge of the blade pointing at 9 Am= acompletely closed blade.
 
Note: Practice to develop your blade angle control until you can determine your blade angle by feel without looking so you can touch any part of the table tennis ball from 12, to all the way down to 6 with your forehand, and 6 back up to 12 with your back-hand.
 
Carl Hardin