Dandenong Bypass Camera descrepency

[SOOSI]

I was fined for doing a detected speed of 109kms late last year on Eastlink.  I was following my husband and we were on motorbikes.  I had been doing to same for more than a week while we traveled over South Australia and Northern Victoria and it is the position I always sit when we are riding together.  My husband had a GPS on his bike and the GPS reading was 100kms.  He always checks it when going under a bridge because he is aware of the cameras.  The photo shows his bike in front and my bike in the normal position behind him.  I received a fine for speeding and he didn't.  I was not speeding and I will fight this in the Magistrates Court.  The infringement was withdrawn by Vic Police on the 24th March and I have been waiting to hear from the courts about a case date ever since.
The group that is fighting this is probably my best chance because the sheer numbers of complaints should show that there is a problem with these cameras regardless of what we are being told.