I don't have a proper rocking chair, but I do have a chair with 4 wooden legs, and because 1 of the legs is shorter than the others, it rocks when I sit on it. 
I've tried on several occasions to cut bits of the legs to level the chair and stop it rocking, but now I have a chair with a seat close to the ground.... and it still rocks. 
 
				
			I've tried on several occasions to cut bits of the legs to level the chair and stop it rocking, but now I have a chair with a seat close to the ground.... and it still rocks.
 
  
				 
						 
 
		 
 
		