Hi... I would just like to know what the OP does with the throttle during the approach... When I was pre-solo the instructor would ask what revs we should use. If it was calm the answer was 1600, if there was some wind then 1800, and if it was a lot more wind we would select 1900rpm, and hold that all the way down on base leg and final.
Nowadays I 'modulate' the throttle depending upon what the scenery looks like out of the window, which (nearly) always gives me a landing on the piano keys. (btw. most airfields I fly at have several hundred metres of undershoot.)