With all that logic and experience talking....can't deny that having
something there that comes unglued under stress (tail skid) is a better
situation than something permanently mounted (tail wheel) that increases the
dragging (sideways) forces. Bare fiberglass slides better.
In my experience, I've had several tail skids come off during off field
landings....did it save my boom? dunno....but, the thing didn't break!!
(Hard to find those things!!!)

What's probably more important is to avoid any weights (batteries,
ballast...etc) placed anywhere up high in the fin that increases the
torsional twisting motion. Mike Adams cautioned me against this when I
bought my first LS-6 from him. I've always put my
balance weights down low back there, using the factory mount at the lower
rudder hinge bolts.....and no tail batteries, ever.

J4