Love the fact that you tried chunking thornback for bait. Good idea to mix it up when the norm isn't doing anything....
and Chad, just some quick advise from someone who learned this painful way, me... always double check yourself and be sure it's a thornback and not a round ray before grabbing your leader close to it, or going to unhook it or letting it dangle around your feet or legs. They're very similar in shape and size so never assume its a thornback until you see those 3 rows of thorns. Round rays tails are super quick and can barb you so fast you wont even see it happen, but you will feel it! Many, many years ago I caught what I assumed was another thorny because I had caught a few already that day. I grabbed my leader about 6" above the dangling ray and...wack! right deep into the underside of my wrist where all those tendons and veins are...I remember thinking, ahh sh!t, then massive burning pain, felt lightheaded and then the next thing I know I'm waking up on my back in the sand with lifeguards and paramedics surrouding me.So.... make sure everytime you or your kids or family, catch what you think is a -1 at first glance,that it does have the 3 rows and isnt smooth before getting within range of its tail.
JOE