G'day Abdul,

No it wont - a you've mentioned, the Mitchel doesn't have a ridge pole.
You'd still be able to set the Universal Swag Awning up like a tarp shelter over your swag though, similar to a traditional beach shelter - just make sure you've pegged all the guy ropes out and tensioned it well.

G'day Sarah,

Whilst Oztrail haven't provided a waterhead rating for this swag awning, it is made from a high denier material with a waterproof coating.  There should be any issues with it keeping you dry, but just be mindful of how you set it up and obviously rain coming in through the open sides.

G'day Virginia,

The sail track is on the short edge, allowing you to have one end attached to the swag, and the other end attached to your awning.
Hope that helps.

G'day Shannon,

It's essentially just a giant tarp with c-clips on each end, so it is indeed universal.
You shouldn't have any issues using this with any kind of swag that has a crossbar.