I use the flower head pins when I sandwich my quilts. I also use the quilting safety pins, but sometimes I don't have enough. I think they pucker less than the yellow head quilting pins.
I have found that I don't get stuck with a pin as much if I put the pin through all three layers, back up through all three layers and then put the tip of the pin back into the middle of the layers, and they stay in much better that way too.