QAYG doesn't have to have sashing, lumpy bits where the blocks join or hand joining on the back. I can't now find the video where I learned the strip technique, but this quilt was QAYG.
https://paternoster.orpheusweb.co.uk/quilts/weddingpressie/weddingpressie.htm
I asked a few years ago about QAYG (quilt still not done!) and
@BrendaP this was your reply:
Three ways of QAYG without sashing.
https://www.instructables.com/id/Quilt-As-You-Go-Quilt/This method has you join the backing by hand.
https://www.stitchedincolor.com/blog//2016/08/how-to-assemble-finish-quilt-as-you-go.htmlThis method has seams in the wadding which could lead to bulky joins, though she insists not!
https://www.youtube.com/watch?v=L_b9WjeP0mUis the way I did my wedding pressie quilt which has FMQ squiggles all over it.
https://thesewingplace.org.uk/index.php/topic,1589.15.htmlAs I said at the time the video really is a lot of waffle, you can skip the first 4 minutes of the first part
Essentially what I did was:
1, Make blocks and join them into strips. Cut strips of backing same size as pieced strips.
2, Sandwich and quilt the first strip making sure that there's at least an inch unquilted along the side to be joined.
3, Trim the wadding in the first strip to the stitching line (1/4" short of the edge of the strips.)
4, Join first pieced strip to the second pieced strip.
5, Join first backing strip to the second backing strip.
6, Spread it out over the floor and flip the second pieced strip back.
7, Carefully slide in another strip of wadding so that it touches the first strip of wadding.
8, Turn the second pieced strip back over the wadding, smooth it out and pin it down well.
9, Quilt the second strip taking the stitching over the join in places but again leave an inch or so at the other side unquilted.
Repeat from step 3 as often as necessary. In the last strip quilt right up to the edge.