This is how I shield a tele. Extremely quiet.
http://s762.photobucket.com/user/jimgmaher/library/BRADS%20BUTTERSCOTCH%20BLONDE%20TELECASTER/Tele%20Shielding?sort=6&page=1
No gnd wire from bridge, relies on the copper shield. No gnd wires to connect the pots and switch together, relies on the control plate. This way you do not create ground loops. Hole between the bridge pickup cavity and control cavity gets sheilded. Create a tunnel between the neck pickup cavity and control cavity and shield it. Output jack tunnel to control cavity gets shielded.
http://s762.photobucket.com/user/jimgmaher/library/BRADS%20BUTTERSCOTCH%20BLONDE%20TELECASTER/Tele%20Shielding?sort=6&page=1
No gnd wire from bridge, relies on the copper shield. No gnd wires to connect the pots and switch together, relies on the control plate. This way you do not create ground loops. Hole between the bridge pickup cavity and control cavity gets sheilded. Create a tunnel between the neck pickup cavity and control cavity and shield it. Output jack tunnel to control cavity gets shielded.