I've used jammers for years, and jam-to-gun doesn't exist EVER with ANYONE in the real world. All you can hope for is some time to slow down, and I've had it every time. I've had cops shoot me for 20+ seconds before getting my speed, and I've even had a couple pull me over to ask why they couldn't get my speed. I actually sold a K40 jammer to a cop for a family member of his.