Dyneema Fixed Rigging

[Topi]

I was talking to a chap yesterday & we got into a discussion on Dyneema rigging. Though I had known of it for some time, what surprised me was how much cheaper the dyneema rope is to buy compared to when it first came out. So much so I am considering doing some of the fixed rig with it.

Has anyone used it on a Top Hat 25 ?

If so any issues, suggested rope sizes or anything I should know about before trying some.

I was thinking that the forestay should probably be SS as it has to take the hanks sliding up and down ?