Building a caul/form for straightening and reflex?

[Sidewinder]

I was looking through my stash of yellar wood the other day and realized alot of what I have left is going to need some corrections in order to make them viable bow staves. With that in mind I need some guidance on how to build a caul. Is there a template that anyone has developed that might help?
 I'm a little slow on the up take and some of you might be thinking its no big deal, but when I get a brain lock I need some one to help me turn the light on. I would like to be able to make side to side, twist or reflex corrections on the same caul if possible.
  Osage outlaw sent me a dvd showing how to make the caul but I have been unable to make it work in my dvd and seem to have mis placed it as well since I last attempted to play it. Any help is much appreciated.   Danny

[blackhawk]

http://paleoplanet69529.yuku.com/topic/6220/t/How-To-Build-And-Use-A-Simple-Caul.html#.TwXX6om2U2Y

The mother of all mother threads for building n using a caul by ken villars

[soy]

Thanks for the info blackhawk ...btw aside from cal.where dose one find 2x6 redwood????it seams to be on the endangered list.

[MWirwicki]

Inexpensive 2x6 lumber works just fine.