> How do these models compare with the venerable 5370? I haven't worked with the 5370. The 5334 doesn't have a fan. It's much easier to find on eBay. The 5334 blurb says 2 ns, 200 ps with averaging. The 5370 blurb says 20 ps single shot. -- These are my opinions, not necessarily my employer's. I hate spam.