Hmmn, I am not so sure I would use the same strips for each meter. I used to use the Ascensia Contour meter then they changed it to the Ascensia Microfill like Ann said, and I believe when they upgraded the meter from a 30 second countdown, then to a 15 second countdown, and then finally to a five second countdown which is the latest model. They then changed the name to just the Contour but you can still buy the older Ascensia Contour model.
It also says right on the box the Contour strips come in that they are not to be used with any test strip other than Bayer's Contour test strips. Do you have control solution that you can test each meter with?
Also, usually you can get a free Contour meter from Bayer if you go to their website. I believe it comes with 10 strips. Or you can sometimes get a free meter at Hocks.com or AmericanDiabetesWholesale.com if you purchase 50 test strips, or something like that.
Anyway, that would be my take on it.