and slammed on the brakes immediately after seeing the cop and slowed to 20 mph hoping he wouldn't catch you, then you would still be considered speeding and he wouldn't have to go 120mph to catch you, and you cant prove him different.
He could easily attest to that and maybe say the sqealing of the tires was not you spinning out but you braking instead, so I would start with the bov/ witness thing and if that went nowhere, hope by then the cop will have said enough to the effect of how you were speeding, that way when you threw the actually mathematics into it, he couldn't go back on his previous statements. good luck.
