It is worth reading that a few times. And then you should pound that like button. This is worth understanding.I can't play with hard outer plies as comfortably as I do with softer ones - limba and Hinoki over the others
I honestly think that othe than finding outer and inner plies you like, EJing in the same blade speed class is largely a waste of time. Unless the feeling of what you are using is terrible, your brain becomes bored over time even when it is great. So just train until the equipment feels like your right hand. Do a lot (and I mean a lot) of target practice.
Handle shape and grip are probably the most important aspects of comfort with a blade and unfortunately the least studied.