I use poly all the time and yes, it does stick. I don't use 505 brand, but I use a spray adhesive. I wouldn't know what to do without it.
I do both FMQ and straight line.
I use poly batting because I can get a roll of 50 meters for about $40. That means under $1/meter. I can get an average of 22 charity quilts out of that roll (mostly European twin size).
But if your BACKING is poly...you would need to spray, spray and spray some more. unless it is double knit. Double knit doesn't slide--it's the opposite--it doesn't slide very well at all on your sewing machine--I found it a huge pain to try to quilt.