Follow the FCOM and company policy.
Follow the FCOM and company policy.
In the NG it is virtually always best to use the best and full protection of the AP which is derived from using FAIL OP (with EDFCS) or dual channel FAIL PASSIVE for pre-EDFCS APs without LAND 3 capability.
The failure tolerance and protection against AP anomalies is vastly superior when using the best AP mode possible, which is achieved by using both APs.
Bottom line is follow the FCOM and company policy.
On the NG, ...EDFCS with using either LAND 3, or LAND 2 is an amazing robust system... and even the earlier dual-channel Fail Passive system was quite good.