Kat and John,
Thank you for your replies. I gave in and started a change in a different door of 30 degrees, to convert it to a SE1. Now the metal door is messing things up. The reading I take standing on the threshold is different from the reading I get if I place the compass against the door while closed. It is abvious why it changes, but it is confusing me about which direction to use.
Any ideas?
Thanks,
Lucia
