Check out the M5 forum, they always do group buys of these things, and I'm certain they have plenty of opinions. IIRC, they did an LE30 buy when it came out.
I have a Lidatek LE10 sitting in the garage, it was phenomenal on my last bike. The new guns report being jammed by it, so it's less useful nowadays.
I also have an LE20 now that I think about it. Hmm, should find and sell it...
Good laser jammers work. Jamming to the gun is a bad idea IMHO, and I like the Lidatek 5 second rule. If I can't slow down enough in 5 seconds, better pin the throttle (leave it pinned?) and hope! LOL
08 K1200S (Phreeooow)
06 Husqvarna TE610