Good Morning Fletch1:
A private lesson is a group class in MUCH smaller detail [IMG]http://www.fightingarts.com/forums/ubb/smile.gif[/IMG]! In private lessons, they do not get the group dynamic, but single one on one attention to areas which require improvement and honing.
Many do not attend group classes, but at some point they must even for a brief time. You need the experience of working with MANY others to find new questions, and considerations which working solo.. does not provide.
How many times, how long, depends on the two of you. How long can you be EFFECTIVE as their teacher in the 5 hour lesson, right [IMG]http://www.fightingarts.com/forums/ubb/wink.gif[/IMG]