I am a huge fan of spray basting.
I was converted to this method when I lived on a tropical island and no kidding the safety pins would start to rust in less than a week.
I have used probably most spray basting products out their from 505 to June Taylor to a 3M product sold in Japan. As long as I followed the directions, I have never had an issue with my machine/needle gumming up, the product not washing out, or the quilting not holding together while being quilted.
And honestly, I have no intention on returning to the pinning method. Simply put spray basting works.