Hello C5
All you have to do is take some spare time and go see Mr. Max Blose. His operates Waco Hobby Stop and also B&p Associates
that is his battery business. He Stores and changes out the batteries in all the big Air Force jets you see fly into and out of Waco.
Max has a son Todd Blose that has competed at the Tournament of Champions. and either is or has been an officer in the Local club.
These guys are easy to talk to and very knowledgeably about model and full scale aviation.
Max also is a Associate Vice President for the AMA district 8 which Texas is a part.
If they can't answer all your question there are other that hang around the shop that will be glad to help.
Don//