IBC 3800 cell pack problems

[Major Azzwoopin]

Any one had any issues with these cells?? I was running my stock emaxx with the 3800 7 cell packs Mike made up for me last fall. I had run the 3 charge and discharge program on my schulze through them a couple of weeks ago to freshen them up. Well one of the cells in one pack popped on the positive end and started spitting and leaking inside the shrink I put on. This happened on discharge. The other pair of 7 cell packs discharged fine but another single cell did the same thing in another pack as the charging cycle finished. Any ideas?