That is a pretty big side impact - must have been another Holden IRS lose.
The only prob with the VT IRS is there isn't enough rebound damping - once you get the tail out and the outside spring is fully compressed, it will spit you back the other way because the spring etxtends at a rate greater than the shock can damp.
I know, cos it spat me into the gravel coming out of the hairpin at Collie in WA.
Hey DONUT KING
you may want to edit your post above and link this pic
, it's only 55k instead of the 900k .bmp you linked up there, would load a bit quicker for us poor poeple who don't have cable yet (only 2 more weeks - woohoo)