Mom's swaddle needs more practice

Claire is swaddled when she is fussy and at bedtime; she sleeps better when her hands aren't startling her or pulling at her pacifier. I have been perfecting my swaddle technique, but she still manages to get free at times. I put her down for a mid-morning nap in what I thought was a pretty good swaddle. I came back 2 minutes later and baby Houdini was free, but sleeping so sweetly.