Hi switzr--

Just to give you another data-point, I am using the Ultra and carried it in with me for my first lab test...it came in within 1% of the lab result (meter said 110/lab said 109). Considering that the techs tell me the lab claims a 4% margin of error, I consider the Ultra as "dead-on".

I should note that this is my second Ultra meter...the first on started out fine, but became increasingly erratic after 6 weeks of use. At the end, I was getting readings differing by nearly 80 mg/dL from two sticks in the same finger done 2 minutes apart! The replacement (provided free) has *never* shown a variance of more than 2 mg/dL under the same conditions.