Loosely reading the convoo, but no DoT besides Demolish should be used in Perfect Balance. You can start with ToD, THEN use PB. But youll want to get as many damage boosts and GL stacks as possible in PB. ToD does neither of those.

I personally go Demo - Snap - DK - TwS - Snap. Those first 2 stacks will allow me to get in 5 hits, i save the last Snap so i have a fresh GL timer. If you immediately go to your Snap Snap Demolish, your GL timer is already ticking down, and in a case where you are temporarily unable to hit your target, and you could def lose those stacks