Originally Posted by Moonpi
As long as the color matches, you probably won't see the difference until years down the road when the thinner fabric wears faster. For hand quilting, the thinner stuff will go faster.
I've never used a lot of muslin - my experience is the muslin shrinks unpredictably.
moonie and mrswhite - do you think that prewashing and machine drying the muslin would help with the shrinkage AND the softening? that might bring the two different weights more in line. sometimes what feels heavier is just full of sizing that washes out. surely the washing and drying would make it easier to sew. yes?