either way works but with pins you do have to be careful where you put them and to not run over them when sewing, basting this is not an issue. also, some people do not like taking the pins back out. i have done both, and find the pins kind of hard but if i used them more often it would probably become easier. i hate having to take them back out, basting stitches are easier..i like using basting spray then i can machine baste around the edges and get right to quilting. but you should try both and see what works best for you. find a friend willing to 'loan' you their bent pins to use so you can try them out with out the investment...about once a year i use mine again.