Hey John
Very interesting point you make and one that I have been thinking about for a few months and testing different methods. From the amount of replies you've had, it seems not many people are actually considering the long form dock workflow like this in X yet. I am surprised as this is crucial to me and to pro workflow.
With the new 10.0.3 update I note favourites are now searchable however I am also thinking about the "sub clip" method.
So now you could duplicate a clip, rename it, select the range as a favourite, assign a keyword and filter for favourites. This effectively creates a sub clip but a better creation process would be to select a range and then choose "make sub clip" from the menu, which is something I hope might appear in the future as it is effectively the same thing but done in a different order.
Have you got any further down the line? Did you choose a method for logging and subclipping?
Cheers
Alex
Alex Snelling
http://www.slackalicefilms.com
http://web.me.com/slackalicefilms/