Carlos - it doesn't work like this. The reaction simply slows a little as the 
silver ions get used up - there isn't a variation in the prints produced as 
the reaction is taken more or less to completion. Of course like most other 
developers you don't use it for ever. 
> > All my tests indicate that all image forming salts can be put in the  
> =  
> > sensitizer.
> > A developer without image forming salts is much easier to prepare and  
> =  
> > control.
> 
> Peter said:
> 
> >There are no problems that I know of in preparing or using the  
> developer given   
> >here, so I don't understand this.   
> 
> People developing by imersion will not be able to calculate the rate of  
> silver consumption from the developer and will get inconsistent results.
> 
> Carlos Gasparinho
>
Peter Marshall
On Fixing Shadows, Dragonfire and elsewhere:
http://faraday.clas.virginia.edu/~ds8s/
Family Pictures & Gay Pride: http://www.dragonfire.net/~gallery/
and: http://www.speltlib.demon.co.uk/
----------