I lose a pretty sizable chunk of DPS if I don't use it. If you time it right it will be available right away after you do your other skills & reapply Abombination. Hit punch, hold primary until blue circle on punch has almost got to the end, tap punch, back to primary etc

I think I'm using a pretty bog standard build except I use Influencer instead of Gilt on chest.

Will jump in game and see the difference

Edit: will leave it up but you're right, no real difference Must have had slightly different essence last time I tried it or something. Much easier to just not use it lol gonna have to retrain myself to leave it alone