You need bookmarks to find all this good stuff, and some good information to go with it.

http://www.alaskabowhunting.com/store/

http://www.kustom-king.com/

http://www.3riversarchery.com/

http://peteward.com/AMOStandards.pdf

http://www.arrowwoods.com/

http://www.rosecityarchery.com/AMOspine.html

http://www.wapitiarchery.com/index.php?cid=122

This is probably one of the best sites out there for tuning a recurve or longbow(click on bow tuning)

http://www.bowmaker.net/index2.htm

That site looks like it copied all the info from the Easton Tuning Guide.

Yes youll slap your arm. I started off w/o one and a nice bruise came up. At first it was a slap here and a slap there, but after time, it became painfull. In the late summer and early fall when its hot especially. During the winter (cold) you may get by w/o one because of the long sleeves but also an arm guard will hold tight the sleeves.

everything else has been covered.

have fun!