I'm quite new to VR phopography any my learning curve is still pretty steep. I've done lots of PTGui and Phoposhop tutorials together with several hand held panos. I came to the point of considering NN pano head purchase but I'm not sure if should I buy an EZ-lever or a ball head as well. I would appreciate an opinion of more experienced users of how can I benefit from this stuff. Does I really need it?