Stabilize your soldering fixtures.
See post #913 also.
A ceramic soldering surface costs about $7.00 and is a tool you should have if you are considering silver soldering.
The ceramic surface can withstand direct flame contact.
Silver soldering fixtures can be top heavy and might fall over while you are soldering.
Below is a discussion about modifying a ceramic plate to securely hold your soldering fixtures.
It takes only a few seconds to remove the finger screws to access the extraction hole in the jig.