I used a 410 very happily with Ebony 5x4, Bronica SQA and Mamiya 7.
Like Wildbill, after some considerable use, I too got some sloppiness, but rectified it as posted in a thread in Archives. A simple task to perform, undoing an allen bolt, disengaging gears and rotating alloy casting; I discovered how to do it after buying a 405 head which is far, far heavier and more expensive.
I would happily switch back to the 410 if something happened to the 405. When i saw a geared head in use for the first time, I was impressed and soon migrated there. They are excellent for landscape photography, but not ideal for faster moving subjects!