I use a larger round hoop, roughly the distance from my elbow to just past fingers. I also usually pin baste, about a hand-width apart in all directions. When I thread baste, I use about the same distance. Are your puckers on the back side of the quilt only? If you've started in the center and the puckers aren't too bad, you probably don't need to rip out all that much of the quilting provided you've got a couple of inches of backing on all sides of your quilt. I, too, keep the whole sandwich fairly loose in the hoop.
I quilt as much as I can in all directions from the center, re-position the hoop as needed and smooth as I go. Sometimes, I've needed to tug a bit on the bottom layer to remove any small puckers in the process. Sometimes I forget or don't notice them as I'm working and don't discover it until later. Oh well. Usually not so bad that it won't be hidden with the crinkle from washing after.
I don't think I would ever spray or glue baste for hand quilting. As someone else mentioned, I would think the needle would get sticky and not go through all the layers they way it should.