To all, I'm interested in purchasing a LSC and I have narrowed the field to two different models and am looking for the good and the bad of each. My email address is dr4i@andrew.cmu.edu, please email me directly. Thanks in advance for any and all help. The two models are: 1) Hewlett Packard - Tricart - model #1600; 2) Beckman model #LS6500. Thanks Denny Rinkacs RSO Carnegie Mellon University