Pins hurt my hands and I can only use spray for a limited amount of time because I get a massive headache (though I do use it sometimes). I like glue sticks for small things and Elmers for the larger ones. I do dilute the Elmers a bit because O don't like it straight out of the bottle.

I safety-pin baste mine every 3 -4 inches, then load the machine with water-soluble thread. Baste the sandwich with that, then take out the pins. I can then FMQ without worrying about hitting a pin. Just remember to switch to regular thread!

I used to use safety pins but decided that makes the quilt too heavy when I’m trying to quilt. I am allergic to a lot of chemicals so I had to reject that plan. I worry washing won’t fully wash out the Elmer’s, so now I baste “by check”. I take front, back and batting to a long armer. It’s a great solution for me.

I hand baste, but I primarily make smaller things and most of the things I have finished, I have hand quilted.

Spray all the way . I've never had a problem even with a queen sized that I spray basted over a year ago and it gets pulled out,worked on and put away again quite regularly so lots of handling and it still sticks together
Watson

I love spray basting! My left hand is weak and does not work as well as it should. So anything that is easier I'd ok in my book!!!

No pins again...ever! Spray only. I stock up when there's a 50% off coupon at Joanns. I find a little spray goes a long way. Have never had a problem with folds either.

Do you thin it. Or exactly what is the process?

I used to use thread basting, but it would take me hours to removed it and it always seemed to get caught in my quilting stitches. My last quilt I made I used pins. It was fast and easy. I use a butter knife to help close them so I didn't hurt my fingers.

Yes, over 300 pins sounds right! I have 600 on hand so I won't run out. Better too basted than ripping out quilting because of pluckering!

505 works for me, too. I do my spray basting in the entry hall on the tile so if there is overspray, I just mop the floor when I'm done. The smell doesn't bother me.

I'm needing to make a practice piece to practice spiral FMQing and I"m thinking about using Elmer's for it just to get a feel for using it. If I like it, I may use it to baste a quilt I'm getting ready to sandwich.