re-writing NAT rule from UTM to XG for web server

Hi all

so we have a UTM 9 up and running and we are configuring the new XG to replace the UTM, most oof the config done by the previous IT guy

for on premises web servers we have SNAT and DNAT rules and masquerade at same time 

i created a rule for each server like this: please correct me if am wrong 

Source zones: WAN

allowed clients networks: any

destination host/network: (XX.XX.XX.XX the Public IP for the server)

services: Essential web services

forward to:

protected server: web1 (host name for the web server)

protected zones: LAN

rewrite source address: on

create reflexive rule: on

thanks