I am also a convert to glue basting! I just squeeze out a thin line in a back and forth motion, 3-4 inches apart. It doesn't have to be thick and solid. I agree it is stiff when it first dries, and sometimes it shows through some, but it really does all wash out. The stiffness is the only thing that bothers me a little. On my last quilt the backing was a stiff over-dyed black, and I made the mistake of starching the backing before applying. Wow, was that combination stiff! It washed up cuddly and soft though, and I threw the leftovers of the backing away.