I currently have a STi but am not too happy with it's performance on K band. i understard the 9500ci is better, but I don't want to shell out $1600 on a new detector, esp.since I will be going LI for my laser related needs. Is there a cheaper version of the 9500ci? For example, without shifter, or a non-hardwire version? Or anything else? I need a Spectre invisible unit.