I’m currently in shipping queue for an ACS Forged and was considering using some webbing across the back in case any in-bed gear comes loose. Keeping the weight down.
When you are referring to "secure" do you mean security? or do mean keeping stuff from flying out of the bed?
I have a Leitner ACS Classic with a Decked drawer system and I have never had an issue with stuff leaving the bed on highways and off-road. The most I use to secure stuff in the back are the Polyethylene bungees attached to the bed hooks or the Leitner rack. My storage containers and coolers always stay in place without being tied down.