Agreed.I absolutely agree with what you're saying about playing live but the original poster was looking for a solution to practicing in an apartment. What I've suggested does give you an ideal "spoon-fed" mix but his only other alternative is to not practice at all. In a live situation you always have to adapt to the conditions but this is about practice. In this case the headphones are the FOH so having them sound good is the way you want it.
I was just explaining the downside of using headphones. However, I'd definitely do the headphone rehearsal thing again if I could... just keeping in mind no solution is perfect.