Hello all, Just looking for some support on our Tango Optimo from biotest. I have found that it does not always catch antibodies. We have had it miss an E, and the screen cells have missed an Fya. Has anyone else run into problems like this? Ive been searching the internet for awhile and havent got far so I'm trying a lab forum now so hopefully i can get some answers! also any tricks you have learned with the tango, anything at all to make me more efficient at it? thanks!