Not sure how to word this question, but do you always go for this trick because I feel if it doesn't go right you lose more then you gain.
For example, on Maidens we don't use hero on the pull and it's often difficult for me to get the heating up + pyro! proc I need in time before my trinkets wear off, making the chance of a good pyro chain much lower, which often results in me getting a lower combust then I would have gotten by getting the procs quicker by using IB.
This mostly happens when I don't have hero on the pull, on Hans/Frans for example I almost always manage to pull it off.
4pc on the pull almost always guarantees I get a good combust, but yeah we all know that isn't guaranteed.
Some general tips on how to salvage a pull when this trick goes wrong would be very welcome, maybe I'm missing something obvious.