I own a Bel X65 I got from Roy and I love it, although I am still confused as to what is the difference between instant on and pop mode. I know pop mode is 67ms bursts of Ka radar (or K maybe?) I have heard some pop mode guns now fire at 14-16ms and why is Pop different from Instant On? Should I worry about Laser, Instant-On AND Pop since none of these offer any advance warning??