-- Last Updated: Oct-20-12 11:41 AM EST --
It sounds like the tape has fully lifted in the case of the OPer, with shredding underneath. The reapir to seam tape I've had done on my Tropos suit was when things hadn't gotten quite that far, so they were able to just put on more tape and cover the area that wanted to leak.
Of course in my oldest suit the feet can now stand up by themselves...