This is basic piloting 101.
Have you calculated the takeoff CG?
What can you do to make the CG change?
How is what you described above going to influence the CG location on
takeoff or landing?
Answer those questions and you will have answered your own.

The airplane is not a rigid body from a physics point of view, so the
CG can change, maybe not by much but I dont know enough about the
tailwheel to know if it moves just a little bit forward which may be
all it takes to make it "more" stable. Basic 101 piloting may not
always be enough to answer every question.