What you are referring to is to re-tension or pre-condition the tape. The only time I recommend doing this is when you have archived tapes. They should be ff/rew every year or two in a seperate rewinder to prevent sticking.
When using new tape it's not necessary.
I've never experienced or heard of a tight tape causing a digital dropout.
Even though it is "old school" to pre-condition a tape. Some still like that added insurance of knowing they're not going to have tightly wound tape.
Last update: 10:00 PM Friday, May 18, 2007