I always had success with beads, crystals, etc...just recently switched 2 an active system with an oasis n seems 2 be running well, also use beads in with it...these look great as well, I'm not real familiar with the KL system but I've seen quite a few post about it. As previously mentioned I enjoy reading up on all these methods as you can always learn something in this hobby! N you geeks r def learning me!! ??