Thanks David,i got one when i got my scarp 1 in 2009/10 ish but never used it.It's been hiding in my garage forgotten about ever since and it never got used.
I have just purchased a duomid and was toying with the idea of trying the tyvek out, just wanted some views on it.

Cheers.

Yes, I've used Tyvek up until now.

Used a sheet direct from the builder's yard and it's tough stuff. Not noisy and easy to clean and waterproof.

Also bought a sheet from Backpacking light, bit crinkly, but you can peg it out and is water resistant enough.

Now bought a tub from Oookworks.