I would also like to let you know that my family and I thought your show was great! . . .The combination of the exceptional artistry and side-splitting humor made for a show that we all really enjoyed.
We sell steel carabiners which we recommend for any single point rigging. Steel will deform when overloaded, whereas aluminum or alloy will shatter when stressed or stress fractured. These are locking carabiners with wide gates. (Picture shows item, but color may vary) Cost is $35 each.