Haven't tried their jpen blades but they are expensive especially the kim taek soo blades.
QUOTE=Anfi;260295]im using tmount AI prime jpen and ace core 1 for rubber
Der Echte, i am not saying that people will not develop using very fast equipment but it is easier to learn with slower equipment especially with no coaching.
I dunno why you got disappointed with the apin because it is already super spinny. Hurricane 3 is spinnier by a small percentage but the target rubbers have better bounce and handling.