Stackwise Virtual on 9500-40X - Dual Active Detection on port channel

[networkandsecurityconsultants]

I am setting up Stackwise Virtual on 9500-40X and have a question around the dual active detection link 

The documentation suggests the dual active detection is an optional step 

https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst9500/software/release/16-6/configuration_guide/b_166_ha_9500/b_166_ha_9500_chapter_01.pdf

And also to configure a single link 

Is it best practice to congiure 2 links and use the ePagP method, i would rather have a port-channel run as the dual active link than a single link

[paul driver]

Hello

Out of the 3 DAD's I would opt for Dual-active fast-hello

This method only requires direct L2 peering between the vss switches and doesn't rely on PAGP on MECs either so it easier to create and less configuration to implement 

[tweep9141983]

Just saw your post.
Curious about what SFP transceivers and fibre cables you used. Thanks in advance.

Because at the moment I am trying to think of using SFP-H10GB-CU1M instead of SFP-10G-SR (which I saw from other setup).