ShopTalk: Shaft Length

[Tom and Donna Mason]

Several years ago I purchased a set of clubs from a local club maker 
that are (I am told and they do look similar) Callaway Promotional Clubs 
built by a company named Bridges or WGGC, not sure which is the Brand 
name and which might be a club series name.  Anyway these were made for 
an automobile dealer's golf tournament, I am assuming to be one of the 
winners prizes.  In the set are three drivers, 1W 9.5° loft, 3W 16° 
loft, and what I thought until yesterday was a 5W until I realized that 
the loft is 22°, the same as my 7W.  I am in the process of, as part of 
my learning to fit, make, and repairing clubs, to properly fit this set 
of clubs to my own specifications.

I have two questions I need help with on this set of drivers.  I have a 
 wrist to floor measurement of 33", what should be the proper length of 
the shaft?  Second, what is the proper method of measuring the shaft 
length with a Callaway head which has three different surfaces angles? 
Do I use the narrow, approximately 1/2" middle section to measure from 
or the flat portion of the heal or the toe?

As for as the proper shaft length where can I find a chart that extends 
 beyond the lengths of a 5W.  If there is none then what is a good rule 
of thumb to follow in the progression of length verses club number?

I appreciate anyone's help on this.

Tom Mason