I've started doing these on a regular basis of recent. I superset chest and back exercises first as usual and then when all is said and done I load up a dumbell and do 4-6 sets of pullovers for 15 reps pyramiding up in weight. Now I find this exercise puts enormous strain on my sternum (painful but temporary) and as such I''m very careful in lowering the weight. The chest pump that I'm getting however is absolutely insane especially in the upper chest where I've never seen my pecs swell and burst out beyond my collarbones like this.I very rarely if ever see anyone doing these in the gym and wonder why. Are results subpar for most or injuries an issue with this exercise? There must be a reason why this once popular exercise has lost out. For those who still do them how have your results been?