HillCountryGal

Everyone has given you good advise.
I definately would baste the quilt while all those straight pins are there. Then, remove them. Can't imagine how many times you're going to get polked by them. *Ask me how I know.

I've never used minky, so don't know how it behaves.

Good luck, it's a beautiful quilt.

Tartan

Great scrappy Trip Around the world top. I've never used Minky on the back of a big quilt so no advice for that. If your stitches are small, enlarge your stitch length until it looks normal.

Micha

Pretty quilt top!

quilter2090

Nancy Zieman from Sewing with Nancy suggests using small bits of fusible web to sandwich the quilt. She cut about a inch of narrow fusible web, and iron the fusible web to the quilt. It seems to work fine.

sewingsuz

That is a beautiful quilt. I think I would take all the pins out and use a different backing and quilt it by a Check. (long arm)
This would just kill me. You are very brave.

Pollytink

I made two more or less lap size quilts/throws for Xmas with Minky on the back. It was the "dot" style, not plush, spray basted them on the bed and it worked fine. They held well while quilting them together....very simple quilting, kind of serpentine stitch, zz tacks, and some zz. Not nearly this big tho but if she wanted to remove the pins and try spray basting, might be worth it. I used pins with faux thingys (can't remember name) on the pins around edges and that was bad enough....can't imagine that many pins on this big a quilt. The quilt is gorgeous.....please post pics again when finished!

Pollytink

I've read about this and want to try it at some point. Would it be a prob with ironing if using cotton/poly or poly batting tho?

DOTTYMO

I would ditch the pins and for a one off buy some spray glue 505 to baste with.
If you want to keep straight pins in pinmores.
Pins we use are safety pins with a curve in.
See if you can find an YouTube on sandwiching and quilting.

Quilter 65

That is a pretty quilt. I hope you get the kinks all ironed out and are pleased with the end result. Very pretty.

newbee3

I would use a walking foot increase the length of stitches