This is the 15th duplicate (16th version)   of my question (re. new    
floss holder), and it is reposted due to changes. Pictures in page    
 http://www.geocities.com/emailerss/ .Only 'yes' to questn 1 is good.    
       
The web-page is mostly how-to-use pictures. This floss holder is    
good for about 250 all-teeth flossing.     
1.Are you flossing frequently using only floss,2 hands and nothing     
else?     
   
2.Is it clear from this web-page how to use this product, and how many    
minutes have you (the researcher) spent on it?       
       
3.The Researcher is asked to answer with one word the question of    
whether he/she would use it in at least seldom/partly(if received free)?

Dear Googel,
1. YES
2. At first glance it seems confusing, but after spending a total of 5
minutes reading the text and following the diagrams, it becomes clear
what this product is for and how it is to be used. It was not
immediately clear what the numbers below each floss holder represent,
and how the floss is attached to the holder. But after this momentary
confusion, I would say that YES, it is clear. But, I think the content
and structure fo the could still be improved.
3. YES. - I would try it out of interest to see if it is really
practical - and because I enjoy testing & researching products. I may
not get around to using it straight away, but I would try it at least
twice. If it came with lengthy instructions and endless diagrams, then
I probably would not bother with it.

I hope this information was useful to you.

Thank you very much. Very critical and very helpful.
If interested , then please check back to this question. 
I will try to comment yours.

Pre-Threaded - Floss tool w/tensioner

On browsing through google answers->your question->the flosser diagram
I felt the following suggestion may be useful, not that you have
not possibly thought of it already. But as an intermittent flosser
who would like to be more regular, suggestions as offered below
may make the tool more user friendly.

The current unit as displayed requires 
   1. threading 
   2. A Knot or some winding

The proposed unit would only require
   1. Threading once
   2. Winding to remove used and expose fresh floss.

By Providing two small bobbin-like rollers at the handle ends

1. One bobbin to store a small roll of clean floss
      - Could be the at the base of the tensioner handle in your
        model.
      - Could be built to accomodate existing floss rollers, or
        would provide an opportunity to generate reveneu by
	providing specially built rollers that fit this model.
   2. Another to receive the used floss
      - Placed at the base of the other handle in your model.
      - Provide an ez lock-in-place feature so tension is maintained.
      - Provide for ez cut/discard of used floss.

Happy flossing.