have you been in a magnet resonance tomography while developing your indicators? If not, then you have no way of knowing which parts of the brain are to which degree engaging with each other when developing an indicator.
I personally think that a good ea is better than the average profitable trader. But an amazing trader will be better than any ea.
Left Brain/Right Brain syllogisms are well known by now.
An "amazing trader" is definitely a goal worth shooting for, no doubt.