Hi! I found the option of upgrading the rotator head from my NN3 to the one you offer from the NN3II very interesting. I suppose that with it I can keep all my detent rings, which will be usable with the new head. In what way will I notice an improvement changing the head? Is the system of the ball click noticeable better than the old one. If so, I feel the upgrade as a fact, but i need confirmation.
BTW, the spell check is usefull, specially for those as myself, english is not our language.