You really should open a support ticket and ask that way you have a record of the response in general for if things are supported or not. That said, for the connection servers, it should be fine, but it is far from optimal. Without a load balancer, you can't use the more optimal least connection balancing method, and if a host goes down unexpectedly or even for maintenance, you'll still hit those boxes unless you pull the dns entry and those reaches all the clients.