Dsoup, reading this thread a few points spring to mind. Firstly, its not clear what fault your instructor is trying to correct, you might start by aking him to explain in greater detail what he thinks the problem is. Secondly, you mentioned 152 and 172, if you are swopping between these there is some chance you are landing too flat in the 172.
Thirdly, the guy deserves the benefit of the doubt a little longer yet, he is an instructor, and might just have a very good reason for what he is doing. At 97 hours you sill have a way to go on landing technique and actually its a good time to try and break bad habits before they become engrained. The comments about peripheral vision made earlier might be correct, or you may be staring at the aiming point too long and getting ground rush and flaring late. You may not be doing these things much and your landings may seem ok but this guy might be trying to remove faults and help you improve
Finally, if you can ask him about the problem and discuss it you might have some ideas yourself about how to solve it. If the paper bothers you tell him you are quite prepared to imagine it being there if it helps. Try working with him, and if that doesnt work out go to the cfi, or even consider flying with the cfi to see what he thinks.