You really need to read this
http://www.iceinspace.com.au/forum/s...d.php?t=172879
1. It pays handsomely to level the top of the tripod accurately using a level (smartphone app will do nicely) as this means that once you have the elevation set correctly on the mount it will be very close to right, every time you set up.
2. Use "The Force", Luke.
Let go of the compass, and look up. The stars will guide you. To locate the SCP well enough locate Hadar (Beta Centauri) and Achernar. SCP is close to midway between them. Hold your hand up at arms length to estimate the midpoint.
If you really insist on using a compass, SCP is 12 degrees east of magnetic south. If using a compass, you need to back off 6-10 metres from the mount to prevent the compass being affected by the steel in the mount, ideally stand on the north side of the mount, hold the compass up and sight over the top of the mount.