A lot of helpful information can also be found at ORCA's page of links:
Member Websites
Non-Member Websites
ORCA's Reel Repair Links

You can also find a ton of information on the http://www.FishingReelResearch.org website originally created by Phil White and donated to ORCA.

There just might be someone who has already done a lot of research on the subject that you are interested in.