HTTP Redirect persistence logic

Here is what I ended up with if it helps anyone else:

v11.6.0

when CLIENT_ACCEPTED {
set retries 0
}
when LB_FAILED {
 set number of desired retries to selected node below
if { $retries < 1 } {
  persist none
  LB::mode rr
  LB::reselect pool A-TS-OLB-DMZ-443-POOL
  incr retries
  }
  log local0. "Sending HTTP query [HTTP::query] to node [LB::server]"
}
when HTTP_REQUEST {
   switch -glob [string tolower [HTTP::query]] {
    "memid=1" { node 192.168.112.141 }
    "memid=2" { node 192.168.112.142 }
    "memid=3" { node 192.168.112.143 }
    "memid=4" { node 192.168.112.144 }
    "memid=5" { node 192.168.112.145 }
    default { pool A-TS-OLB-DMZ-443-POOL }
  }
  log local0. "Sending HTTP query [HTTP::query] to node [LB::server addr]"
}