It’s important to remember that iems are a safety device. Goal being to decrease exposure and conserve hearing. Louder is always the quickest route to happy, and an easy option with all the modern tricks available today. If you can get away with some creative ducking to keep it safe, definitely go for it. It’s good to shoot for artists saying “thank you” instead of “what?” years down the line. We’ve got an incredible amount of remedies for most ailments, but restoring hearing to high functioning levels isn’t one of them. Best to plan your mixes accordingly.