Please be aware that each 4 digit cue applies to ONE target only; doubling up the cues (eg 8914 6166) invalidates the process as effectively you are viewing two targets at once with the resultant data becoming indistinguishable.
Oops! Guilty as charged. I thought I was getting something wrong with the protocol.
Up to you what you do with my data. Best practice would be scrap it entirely.
There might be something in there you can salvage, but if other people have done four sessions rather than eight, then the data might be cross comparable... Doubtful though.