Thanks Stephen for the reply, and that wonderfully thoughtful, helpful & very understandable description of your technique for working with props/action objects. Lots of very good info. Especially new idea to me was about applying the constraints late in the animating process. Boy am I dealing with this. And boy am I dealing with transferring control without "jumps". Yikes. When I get a bit further, and some courage, perhaps I'll post my wip
Since I last posted - I had discovered my silliness by not also using the Orient like constraint as well as translate to (duh - didn't think I needed it as I wasn't trying to change orientation of prop) - and found out what was causing (as well as solution) to some of the problem with using successive actions with the same prop, however there are still problems with using more than 1 action with same prop in the chor, and so I have resorted to just starting a new chor - bit of a pain having to setup the end of the entire scene keyframes into the beginning of the new scene. (wish there was some automatic Command: - like "Start new chor with this frame for all active components")
As for animating in an action versus chor for non-repetitive activities, I had developed a habit of setting my keyposes in the action, checking the in-betweening, but not being real picky about the timing. I would then use the ease channel for the action in the chor to work on the more precise timing of the action - lazy way - that way I'm mostly dealing with only 1 channel for the actor, and it's easier to coordinate with the action of other actors in the scene. Also I find it very difficult to animate in the chor with the splines/images of all the other cameras, lights, ground plane, & other actors getting in the way of my view (even using front, side, etc), not to mention it's seems to have a more sluggish computer response, - just found it less distracting and more fluid in the action window. But I should probably rethink my lazy ways...
Again thank you so much for your response, I have read & re-read it many times as it contains very relevant, and helpful info for me (and anyone else, I suspect, trying to work with props) - Nancy