Not a new problem:
http://www.ukgser.com/forums/showthread.php?7615-Melting-Indicators
and one solution for a few pounds:
http://www.ukgser.com/forums/showthread.php?10750-Melting-pannier-solution
http://www.ukgser.com/forums/showthread.php?7615-Melting-Indicators
and one solution for a few pounds:
http://www.ukgser.com/forums/showthread.php?10750-Melting-pannier-solution