well i have heard that hyperfax's are nice and instead of melting at 400 degrees with the hyperfax it will melt at 700. i went out on a rid today and we had 5 inches. i was in the ditch and some spots in construction zones were horrible. i was trying to get in as much snow as possible. i couldn't put my scratchers down because there are so many roads you have to cross. then i heard this sound when i started to move. it sounded like a tank. dddddddddddddddd. anyone know what this is? how well do hyperfax's work?