All the following links will teach you about all the bowling ball layouts & with their effect:
http://www.docstoc.com/docs/518768/B...illing-Layouts
http://www.bowlingball.com/info/manu...yout-list.html
http://www.hammerbowling.com/tech_in...structions%208
http://www.currahee-usbc.org/korner/layouts/index.php
http://www.vinu.edu/cms/opencms/futu...drillings.html
http://www.bowling-info.com/index.ph...rill%20Layouts
http://docs.google.com/gview?a=v&q=c...ImXxkkW1_2A37g
Rico Drilling Layout:
http://wiki.bowlingchat.net/wiki/ind...&printable=yes