I think I'm missing something obvious here.

Ruin 2, 100 pot. Broil 230 pot.

If I need to use an ogcd ot seems plain SE wants you to use ruin 2 and weave the ogcd. (Assuming miasma 2 and bio is already up)

But the math doesn't work out. Even if you delay half a gcd, 1.25 sec, on broil to spam an ogcd you still avg 115 potency while ruin 2 is 100 and less mp efficient. (And no ogcd takes a full 1.25 sec anyway)

ie: let's say an ogcd delays my broul by 1.25 sec. I do this twice. I've now spent 2.5 sec on ogcds and 2.5 sec on broil for a total of 230 potency. Let's say those 2 times I delayed broil I used ruin 2 instead. Now I've spent 5 sec on two ruin2 for 200 potency.

So why in the world should I ever use ruin 2 with the only exceptions I see being mobility, or exclusively double weaving as single weaving seems to be a dps loss?