Dyneema for furling line and halyard in old boat..

[Marieholm26]

Hello!
I got a question for this forum:
What you think about use a dyneema material for furling gear and halyards for genoa and mainsail?
I read some different opinion, some time completely opposite to use this material in 30 years old boats.
Some say that the old boats are more flexible and is better to associate normal fiber line than new ones dyneema (that is more strong than steel!!) all the sistem need to be flexible..
Some other say when you use dyneema for halyard you must pay attention to winch it to tight. It could cause a rig failure ..due the strength of it than became more than shrouds ...Boh!? I'm little confused....
Any advise or opinion?
Ciao
Gabriele