i think what Mr. Cox is trying to say is that the redundancy system is making something that he already has trouble with even more difficult............and it is, but only if you aren't one to stay on top of things and have a good routine checklist on paper and in your head.

certainly no one has to use a redundancy system, but for those of us who have seen switch failures or a failed cell bring a model down, then the system becomes commen sense.