>"guess this is a typo: "227+j521 = 29:1 SWR (50) on 20m""
On your diagram, the impedance looking into your load shows a value of 227+j521 with SWR = 2.19:1. Normalized in a Z=50 system, I get an input SWR of 29:1.
So, the 2.19:1 SWR value you show is either incorrect for a 227+j521 load OR possibly the analyzer program was normalized to a different impedance. My SimSmith result is based on a 50-ohm system. All other values for coax distance and T network values were taken from your diagram.
Somewhere, we have a disconnection in assumptions and yet the end result back to the source is the same.