Quote Originally Posted by ovrlrd View Post
This makes sense for a 4 Lock team, but it is not the team OP is playing (which is exactly like mine).
For my lock I went deep destro, can't really say it is optimized but it works for me thus far
You could go demo/destro for 70% pushback resistance and 20% threat reduction as well as improved imp buffs by 39. Then go destro for ruin. Pretty close to the standard DS/Ruin raid spec with a few tweaks.

https://classic.wowhead.com/talent-c...50500051220001