I use my cutting table to baste my quilts. I just lay the backing fabric over the table, make sure it's smooth. Then I lay the batting, smoothing as I go. Then I lay the top, getting it smooth. Pin from the center out, checking for smoothness. When the part that's on the table is pinned, I slide off to get to another part. I check smoothness of the backing, batting and top on the new part and pin away. Works for me. Sometimes I will spray the backing before laying the batting on it, but I always pin the top unless it's a small quilt.
using this method, I don't have to get down on the floor, I can baste any size quilt I want and I've never had problems with puckers, pleats, etc. I do all my quilting on my DSM.
Rob