A Q and A answering:

Question: Is it possible to stay at the same weight and replace fat weight with LBM, by making decent strength gains over time? (i.e by not actually leaning out and then mass packing etc). Can the body use the extra calories that are needed for new muscle gain from existing fat stores on the body?  I’m assuming this is the case for beginners, but how about intermediates/advanced trainees?  If so, roughly what sort of time frame would be needed to say drop 10lbs fat and replace with the same amount in muscle?