The inserts help but aren't near as good as the 'dog-bone' or similar mounts.
And he just blew away the tires in that video. He's gotta practice more.
98.5 SVT
91 Escort GT (almost sold)
96 ATX Zetec (i brake to watch you swerve)
FS: SVT rear sway bar
WTB: Very cheap beater
CEG Dragon Run - October 13-15