So the issue is when the user enters data into on of the cells (reps or lbs) and has not than 5 sets - when you scroll left and right to see the data the index get all messed up and the original data chnges. Does that make sense?

So its interesting - if I comment out the cell.initialize it does not crash. What happens is the values in the cells after cell 5 get all mixed up. For example if I add cell #6, the value is what was stored in cell 1 and cell 1 value has cell #6 value. It seems to have to do with the scolling and the visible cells on the screen. I can send you the project if that would help AND you have the time.