I agree Tong Tong..Learning to Aim the Logo or a is all rubbish...Unfortunatley most golfers are so ignorant to the fact they are putting with putters..they will never aim..I mean NEVER...no matter how often they practice or eye doctors or psychiatrists...or???????
Do you think a degree of loft would affect aim?
How about 1/16 of a degree of offset?
How about the Head design of a long,skinny rectangle versus a fat half circle?
What about color of Head material?
What about the Location of the Line on the Top Line or the Flange or no line at all?